A thin cornea refers to a condition where the cornea—the clear, dome-shaped front layer of the eye—has a thickness lower than normal, which can affect vision and overall eye health. This condition may result from various causes such as natural aging, frequent eye rubbing, genetic disorders, or side effects from eye surgeries like LASIK. Common symptoms include blurry vision, frequent changes in prescription, distorted images, and unusually high astigmatism.   Understanding the Cornea The cornea is the transparent, curved layer covering the front part of the eye. It helps focus light into the eye for clear vision and serves as a protective barrier against dust and germs. Normally, corneal thickness ranges between 520–550 microns, but it may thin with age.   What Is a Thin Cornea? A thin cornea is typically defined as a corneal thickness of less than 500 microns (0.5 mm). It is not necessarily a disease and often requires no treatment. However, thin corneas can affect certain diagnoses—such as glaucoma—since intraocular pressure readings may appear lower than actual values. Corneal thickness also plays an important role in refractive surgery decisions. For example, patients with thin corneas and high refractive errors (nearsightedness or astigmatism) may not be ideal candidates for LASIK, as the remaining corneal tissue after surgery might be too thin. This could increase the risk of complications like keratoconus or corneal ectasia. In such cases, ophthalmologists may recommend alternative procedures such as PRK, ICL, FemtoLASIK, ReLEx SMILE Pro, or NanoLASIK, which preserve more corneal tissue. Therefore, detailed corneal thickness assessment is essential before undergoing LASIK to ensure safe and effective outcomes.   Does Wearing Contact Lenses Cause Thinning of the Cornea? Generally, wearing contact lenses correctly does not thin the cornea. However, prolonged use without proper cleaning or rest may lead to oxygen deprivation or corneal infections, which can gradually weaken or thin corneal tissue.   Causes of Thin Cornea There are several factors that can lead to corneal thinning: 1. Genetic Conditions Keratoconus: The most common cause, where the cornea gradually thins and bulges outward into a cone shape, leading to irregular astigmatism and blurred vision. It usually appears during the teenage years to early adulthood. Corneal Dystrophies: Such as Pellucid Marginal Degeneration (PMD), where thinning occurs in the lower peripheral cornea. 2. Eye Surgery or Injury Procedures like LASIK or PRK can thin the cornea, especially if excessive corneal tissue is removed. Repeated eye injuries or untreated infections (e.g., corneal ulcers, keratitis) can also cause thinning due to tissue damage. 3. Systemic Diseases and Medication Autoimmune diseases such as Rheumatoid Arthritis or SLE can cause chronic inflammation, leading to corneal thinning.Long-term use of steroid eye drops may also weaken corneal tissue over time.   Symptoms of Thin Cornea Corneal thinning often progresses slowly and may not show early signs. Key symptoms include: Blurry or distorted vision Frequent changes in prescription High or irregular astigmatism Difficulty focusing or double vision   Diagnosis Thin cornea is often detected during pre-LASIK evaluations.Eye doctors use devices like: Keratometer: Measures corneal curvature and astigmatism. Corneal Topography: Creates a detailed map of corneal thickness and shape. Tomographic Biomechanical Index (TBI): Evaluates corneal strength and risk of ectasia. While early symptoms can hint at the condition, only a comprehensive eye exam by an ophthalmologist can confirm it.   Summary Thin cornea is a silent condition that can significantly impact vision if left untreated. Early detection—especially before refractive surgery—is crucial.At Bangkok Eye Hospital, advanced diagnostic tools and experienced specialists ensure accurate corneal thickness evaluation and personalized treatment planning to maintain long-term eye health.     FAQ: Frequently Asked Questions About Thin Cornea 1. Can corneal thickness be increased?No, corneal thickness cannot naturally increase as it is determined by the cornea’s internal structure. 2. What happens if thin cornea is left untreated?It may lead to worsening blurred vision, irregular astigmatism, or even corneal ectasia. In severe cases, acute hydrops or corneal perforation may occur, leading to permanent vision loss if untreated. 3. Can thin cornea be prevented?Yes — by avoiding vigorous eye rubbing, maintaining good eye hygiene, limiting contact lens wear time, and having regular eye checkups, especially if there is a family history of corneal diseases.

Dry eyes Tears play a crucial role in keeping our eyes moist, ensuring clear vision by letting light effectively pass through the eye's lens, and supplying oxygen to nourish the eye. They also help fend off infections and keep foreign substances at bay.   Now, when it comes to dry eyes, it's a pretty common issue that can stem from abnormal tear production or tears evaporating too quickly. This can lead to discomfort, irritation, that feeling like there's something foreign in your eye, redness, pain, blurry vision that gets better with blinking, or even feeling like your eyes are tired and heavy. What causes dry eyes can vary—getting older, being a woman (yeah, we're more prone to it), certain allergy medications, spending loads of time on screens, being in places with dust and smoke, gusty winds, and bright lights, they can all have a hand in it.   But hey, the good news is there are ways to tackle dry eyes:   Keep away from things that can make it worse, like strong winds and dust, by popping on some sunglasses and protecting those peepers. Remember to take breaks or blink more often, especially when you're glued to screens for a while. You've got these cool eye drops called artificial tears. There's a type for daytime (more watery) and nighttime (a bit thicker). Which one to use depends on how serious your dry eye situation is. Sometimes your doc might suggest special eye drops that encourage your eyes to make more tears. Give your eyes a treat with warm, clean cloths over your closed eyelids to help them feel better. If the dry eye struggle is real and isn't improving, it's wise to chat with an eye doctor.   All in all, dry eyes can be a bother, but there are solutions out there. It's important to take good care of your eyes, especially when it's all dry outside. If you suspect you've got dry eyes, having a chat with an eye care expert is a smart move.      

Lens replacement is a surgical procedure that removes the natural crystalline lens and replaces it with an artificial intraocular lens (Intraocular Lens – IOL) to correct vision problems. Suitable for individuals with high refractive errors or cataracts who are not good candidates for LASIK (LASIK/PRK) The benefits of lens replacement include clearer vision, improved quality of life, and reduced dependence on glasses Blurred or unclear vision can result from various causes, including cataracts, farsightedness, nearsightedness, or abnormalities of the eye lens. These conditions can affect daily activities, work performance, and confidence in vision. Lens replacement surgery provides a safe and effective solution tailored to each individual’s visual condition. It helps reduce blurred vision, improves focusing ability, and restores comfort in everyday life. Before deciding on surgery, patients should understand the procedure, benefits, and precautions to ensure the safest and best possible outcomes.     What Is Lens Replacement Surgery? Lens replacement surgery involves removing the natural crystalline lens and implanting an artificial intraocular lens to correct vision problems such as presbyopia (age-related farsightedness), nearsightedness, or astigmatism. This technique is similar to cataract surgery; however, refractive lens exchange (RLE) is performed to improve visual quality rather than to directly treat cataracts.     How the Natural Eye Lens Works Before understanding lens replacement surgery, it is important to understand how the natural eye lens functions. The lens is located behind the iris and is transparent and flexible. It works together with the cornea to focus light onto the retina, allowing the brain to perceive clear images.   In younger individuals, the lens is highly flexible and can adjust focus easily for both near and distance vision. As age increases, the lens becomes stiffer and loses flexibility, resulting in presbyopia. In patients with cataracts, lens proteins clump together, causing cloudiness that reduces light transmission and leads to blurred or foggy vision.   Who Is Suitable for Lens Replacement Surgery? Lens replacement surgery is suitable for individuals whose vision problems are difficult to correct with other methods or for those who wish to address multiple vision issues at once. Individuals Seeking Vision Correction For patients who wish to correct refractive errors, lens replacement surgery is an alternative option—especially for those with high prescriptions or who are not suitable candidates for LASIK or PRK. Lens replacement can permanently correct refractive errors.   In addition, patients can choose special types of intraocular lenses (IOLs) that correct nearsightedness, farsightedness, and astigmatism. This helps reduce the need for glasses or contact lenses after surgery, providing clearer vision and greater convenience in daily life, while restoring visual quality as close as possible to natural vision.   Individuals with Age-Related Farsightedness (Presbyopia) Presbyopia occurs when the lens becomes stiff and loses flexibility, making it difficult to focus on near objects. Patients with presbyopia often rely on reading glasses or multifocal glasses.   Lens replacement using presbyopia-correcting IOLs can restore clear vision at near, intermediate, and far distances, depending on the type of lens selected. Some lenses significantly reduce the need for glasses after surgery, making daily activities more convenient and restoring vision closer to that of younger years.   Individuals with Cataracts Cataracts are caused by degeneration of the eye lens, making it cloudy and reducing light transmission, resulting in blurred vision. Cataracts are commonly found in older adults but may also result from genetic factors, eye injuries, diabetes, or long-term use of certain medications such as steroids.   Lens replacement surgery is the most effective treatment. The cloudy natural lens is removed and replaced with an artificial IOL, which can be selected to match the patient’s needs—such as lenses that provide clear vision at multiple distances or reduce age-related farsightedness.     Types of Intraocular Lenses (IOLs) Choosing the type of intraocular lens is the most important step in planning lens replacement surgery, as it directly affects postoperative visual quality. IOLs are classified based on their focusing capabilities.   1. Monofocal Lenses Standard monofocal IOLs have been widely used for many years. They provide clear vision at a single focal distance while effectively reducing blurred vision caused by cataracts.   Advantages   Clear distance vision Suitable for outdoor activities and driving More affordable Limitations   Glasses are still needed for near tasks such as reading, smartphone use, or computer work 2. Extended Depth of Focus (EDOF) Lenses EDOF lenses are designed to extend the range of focus, providing clear vision at intermediate and distance ranges. They offer smooth visual transitions and reduce issues such as glare or image distortion. These lenses are suitable for computer work, watching television, and daily activities that do not require close focus.   Advantages Reduced dependence on glasses compared to monofocal lenses Limitations Glasses may still be required for near vision tasks such as reading or smartphone use 3. Multifocal / Trifocal Lenses Multifocal and trifocal IOLs are designed to provide clear vision at multiple distances—near, intermediate, and far—allowing patients to perform a wide range of activities without relying on glasses. These lenses enhance convenience and independence in daily life.   However, some patients may experience halos or glare, especially at night, and may need time to adapt. Multifocal lenses may not be suitable for individuals with severe dry eye or certain retinal conditions.     Lens Replacement Surgery Procedure Modern lens replacement surgery typically uses a technique called phacoemulsification. This minimally invasive procedure involves a small incision, requires a short operating time, and allows for rapid recovery. The steps include:   Detailed eye measurements to calculate the most suitable IOL power Preoperative instructions, such as fasting before surgery Application of local anesthetic eye drops to prevent pain A small corneal incision of approximately 2–3 millimeters Use of a small ultrasonic probe to break up and remove the cloudy lens Insertion of the folded artificial IOL into the original lens capsule, where it unfolds into position The incision is self-sealing and usually does not require sutures, reducing recovery time Benefits of Lens Replacement Surgery Lens replacement surgery restores clear vision and enhances quality of life while reducing dependence on glasses or contact lenses. Benefits include:   Correction of a wide range of vision problems, including nearsightedness, farsightedness, astigmatism, presbyopia, and cataracts Artificial lenses are designed to last a lifetime without degradation Short recovery time and faster return to daily activities Precautions and Possible Complications Although lens replacement surgery is generally very safe, potential complications—similar to other surgical procedures—may occur, including:   Temporary elevation of intraocular pressure Intraocular bleeding (rare) Eye infection (serious but very rare) Displacement of the intraocular lens Cystoid macular edema in some patients Clouding of the remaining lens capsule, which can be treated with YAG laser   Why Choose Lens Replacement at the Cornea Center, Bangkok Eye Hospital? Bangkok Eye Hospital provides comprehensive eye care by integrating advanced medical technology with highly experienced specialist ophthalmologists. The Cornea Center offers complete diagnostic and treatment services, including lens replacement surgery, to restore optimal eye health.   Patients receive expert consultation, clear explanations of their condition, and personalized treatment recommendations. With international-standard equipment, care is provided from diagnosis through treatment and follow-up in a warm, patient-centered environment.   Summary Lens replacement surgery involves removing the natural crystalline lens and implanting an artificial intraocular lens (IOL) to correct refractive errors or cataracts. Various types of IOLs are available, including monofocal, multifocal, and extended depth-of-focus lenses, which are selected based on individual needs. The procedure uses a small incision, allows rapid recovery, and improves visual clarity and quality of life. Potential risks include infection, bleeding, elevated intraocular pressure, lens displacement, or other complications, which can be effectively managed by specialist ophthalmologists at Bangkok Eye Hospital. Treatment costs depend on the type and indication for lens replacement, such as standard IOL implantation or cataract-related lens replacement.   Related Articles Where Is the Best Place for LASIK? Comparing Techniques and Hospital Selection Criteria Blurred Vision on the Field: Don’t Miss Important Opportunities LASIK for Badminton Players: Sharper Vision for Victory on Every Court Frequently Asked Questions About Lens Replacement (FAQ) How Should I Care for My Eyes After Lens Replacement? After lens replacement surgery, patients should rest their eyes, use artificial tears as advised, avoid rubbing the eyes, and refrain from high-risk activities such as heavy lifting or strenuous exercise. Follow-up appointments with the ophthalmologist are essential. Any abnormal symptoms, such as redness, pain, or blurred vision, should be reported immediately.   How Many Times Can Lens Replacement Be Performed? Generally, the natural crystalline lens can be replaced only once. However, the artificial intraocular lens (IOL) may be exchanged or adjusted if problems occur, such as lens displacement or clouding, or if the patient wishes to change lens type. Repeat procedures depend on the ophthalmologist’s judgment and the patient’s eye condition.   How Long Is the Recovery Period After Lens Replacement? Most patients can resume light daily activities within 1–2 days after surgery. Full visual recovery typically occurs within 1–2 weeks, depending on the type of lens and individual eye condition. Patients should avoid high-risk activities such as vigorous eye rubbing, heavy lifting, or intense sports until cleared by their ophthalmologist.  

Double vision is a condition in which a single object appears as two images simultaneously. It can result from abnormalities of the eyes, eye muscles, lenses, or certain parts of the nervous system. The causes of double vision may involve dysfunction of the eye muscles, eye lenses, optic nerves, or the brain. Treatment depends on the underlying cause and may include corrective glasses, eye muscle exercises, treatment of the primary disease, or surgery in some cases, as advised by a physician. Double vision (Diplopia) is a visual problem that occurs when images from both eyes fail to merge properly, causing objects to appear duplicated. This condition can interfere with daily activities such as reading, driving, and walking, and may compromise safety. Understanding the causes and undergoing early diagnosis can lead to more accurate and effective treatment.     What Is Double Vision? Double vision, or diplopia, refers to seeing one object as two. This condition can be highly disruptive to daily life, affecting activities such as driving, reading, and even walking, and may cause dizziness or balance problems.   Double vision can be classified into two main types:   Monocular DiplopiaDouble vision persists even when the unaffected eye is closed, indicating that the problem originates within one eye. Binocular DiplopiaDouble vision disappears when either eye is closed, suggesting that the issue arises from misalignment or coordination problems between both eyes.     Causes of Double Vision Double vision does not have a single cause and may result from various factors, depending on the type and characteristics of the symptom.   Causes of Monocular Diplopia This type is usually caused by structural problems within the eye itself, such as the cornea, lens, or retina, and is typically not related to eye muscles or nerves controlling eye movement.   Cataracts Cataracts occur when the normally clear lens becomes cloudy, causing light to scatter before reaching the retina. This results in blurred or double vision that gradually worsens with age.   Corneal Abnormalities Corneal edema occurs when fluid accumulates in the cornea, causing swelling and cloudiness that impair vision and may lead to double vision. Corneal scars or ulcers caused by infection or injury can alter light refraction and result in double vision. Keratoconus is a condition in which the cornea gradually thins and bulges into a cone shape, causing irregular refraction and visual distortion.   Refractive Errors and Lens Issues Astigmatism occurs when the cornea has an irregular curvature, leading to distorted or duplicated images.   In patients who have undergone cataract surgery, displacement or malfunction of an intraocular lens may also cause double vision.   Causes of Binocular Diplopia Binocular diplopia often indicates more serious problems involving the eye muscles, the nerves controlling eye movement, or the brain, and requires prompt evaluation.   Eye Muscle Disorders Each eye is controlled by six extraocular muscles. Weakness or poor coordination among these muscles can prevent both eyes from moving synchronously.   Examples include: Graves’ DiseaseThis condition causes inflammation and swelling of the eye muscles, leading to abnormal eye movement.   Myasthenia GravisAn autoimmune disorder that causes muscle weakness throughout the body, including the muscles controlling eye movement, resulting in strabismus and double vision.   Optic and Cranial Nerve Disorders Cranial nerves III, IV, and VI control eye movement. Damage to these nerves due to disease or injury can disrupt eye alignment.   Common causes include:   Diabetes, which can damage nerves supplying the eye muscles Multiple Sclerosis (MS), a central nervous system disorder that damages nerve coverings and disrupts nerve signaling Stroke, which may suddenly affect the nerves controlling eye movement and cause acute double vision Brain-Related Causes The brain processes visual signals from both eyes. Any abnormality affecting this process can result in double vision, including:   Brain tumors that compress visual or motor nerves Aneurysms, where bulging blood vessels press on ocular nerves Traumatic brain injury, which may damage areas of the brain responsible for vision     Diagnostic Process for Double Vision Early consultation with an ophthalmologist is essential for accurate diagnosis and appropriate treatment. Diagnostic steps include:   1. Medical History The ophthalmologist will assess symptom onset, frequency, whether double vision resolves when one eye is closed, the direction of image separation (horizontal or vertical), associated symptoms such as headache or dizziness, history of head injury, and underlying medical conditions.   2. Clinical Examinations A comprehensive eye examination is performed, including visual acuity testing, corneal and lens evaluation, and assessment of eye muscle function.   Blood tests may be ordered to detect systemic conditions such as diabetes or thyroid disease.If a neurological cause is suspected, CT scan or MRI imaging may be recommended to evaluate the brain and cranial nerves.     Treatment Approaches for Double Vision Treatment depends on identifying and addressing the underlying cause. Options include:   Treating underlying medical conditions such as diabetes or thyroid disease Prism glasses to help align images in cases of binocular diplopia caused by eye muscle imbalance Botulinum toxin injections to relax overactive eye muscles in certain cases of strabismus Cataract surgery with lens replacement when cataracts are the cause Surgical intervention in selected cases, such as severe strabismus or tumors Precautions and Additional Recommendations In addition to treatment, proper self-care can help prevent symptom worsening and complications.   Do not ignore symptoms, even if they are temporary Control underlying conditions such as diabetes or hypertension Ensure adequate rest and reduce prolonged eye strain when possible     Why Choose Bangkok Eye Hospital for Double Vision Treatment? Bangkok Eye Hospital offers comprehensive eye care supported by advanced technology and experienced specialist ophthalmologists. Services include:   Professional consultation and personalized treatment planning International-standard diagnostic and treatment equipment Comprehensive care from diagnosis through follow-up Summary Double vision can result from various causes, ranging from eye muscle disorders and lens abnormalities to optic nerve and brain-related conditions. Diagnosis involves thorough history-taking, eye examinations, and sometimes blood tests or imaging such as CT or MRI. Treatment depends on the cause and may include vision correction, medication, or surgery. Preventive care, including regular eye rest and avoiding excessive eye strain, is important. Patients experiencing double vision should seek evaluation from specialist ophthalmologists at Bangkok Eye Hospital for accurate diagnosis and effective treatment.   Related Articles What Causes a Retinal Hole? Symptoms and When to See a Doctor Recognizing Macular Edema: Warning Signs You Should Not Ignore Is a Burst Blood Vessel in the Eye Dangerous? Symptoms and Treatment Frequently Asked Questions About Double Vision (FAQ) Why Do I See Double Vision When Using My Phone? This is commonly caused by eye muscle fatigue or astigmatism, which affects focusing accuracy during prolonged screen use. Dry eye and excessive eye strain can also cause temporary double vision. Persistent or worsening symptoms should be evaluated by an ophthalmologist.   Is Double Vision Dangerous? Double vision may be harmless if caused by temporary eye strain, but frequent or sudden onset—especially with symptoms such as headache, dizziness, or after head injury—may indicate serious conditions involving the eyes, nerves, or brain and requires immediate medical evaluation.   What Causes Double Vision at Distance? Double vision when viewing distant objects is often related to eye muscle imbalance, lens abnormalities, or displacement of an intraocular lens. In some cases, neurological or brain-related issues may be involved. A comprehensive eye examination is recommended to determine the exact cause.

Blurred vision in one eye is a condition in which the vision of one eye becomes reduced or unclear, either temporarily or permanently. Common causes of blurred vision in one eye include dry eye, refractive errors, cataracts, glaucoma, eye infections, intraocular bleeding, and optic nerve disorders. Treatment options for blurred vision in one eye include resting the eyes, using artificial tears, performing eye exercises, consuming eye-nourishing foods, and consulting an ophthalmologist if symptoms are severe. Have you ever suddenly experienced blurred vision in just one eye? Although it may seem harmless at first, this symptom can actually be a warning sign of an underlying eye condition or a serious health issue that requires prompt medical attention. Understanding the causes of unilateral blurred vision and knowing the correct way to manage it is essential and should not be overlooked, as early intervention can help reduce the risk of permanent vision loss in the future.     What Is Blurred Vision in One Eye? Blurred vision in one eye refers to a sudden or gradual decrease in vision affecting only one eye, causing images to appear unclear, hazy, or distorted. This condition may be temporary or permanent, depending on the underlying cause. Because each eye functions independently, blurred vision in one eye while the other remains normal is an important sign that may indicate a localized problem affecting that specific eye.     Causes of Blurred Vision in One Eye If you are wondering what causes blurred vision in one eye, the condition can result from a wide range of factors, from minor issues to serious conditions that may lead to permanent vision loss if left untreated. Common causes include:   Dry Eye Dry eye is one of the most common causes of blurred vision in one eye. Tears play a vital role in lubricating and maintaining moisture on the eye’s surface. When tear production is insufficient or tear quality is poor, the cornea can become dry and irritated, leading to visual disturbances. In today’s digital age, prolonged screen use reduces blinking frequency, accelerates tear evaporation, and increases the risk of unilateral blurred vision.   Refractive Errors Blurred vision in one eye may result from refractive errors such as nearsightedness, farsightedness, or astigmatism—especially when these conditions affect only one eye or differ significantly between both eyes. The brain must work harder to process images, which can lead to blurred vision, eye strain, and headaches.   If left uncorrected with appropriate glasses or contact lenses, this condition may progress to amblyopia (lazy eye) and increase the risk of long-term vision impairment.   Eyelid Abnormalities Abnormalities of the eyelids, such as eyelid drooping, muscle weakness, or blepharitis, can interfere with proper blinking and tear distribution across the cornea. This may cause dry spots and blurred vision. Inward-growing eyelashes or eyelid infections can also irritate the eye and contribute to unilateral blurred vision.   Eye Inflammation or Infection Eye infections or inflammation are common causes of blurred vision in one eye. These conditions may be caused by bacteria, viruses, or fungi and often present with redness, eye pain, tearing, blurred vision, discharge, light sensitivity, or a foreign-body sensation. Treatment depends on the cause and may involve antibiotics, antiviral medication, or anti-inflammatory drugs.   Headaches or Migraines People who suffer from migraines may experience blurred vision in one eye, particularly during the aura phase before the headache begins. Symptoms may include blurred vision, flashing lights, blind spots, or zigzag patterns, often affecting one eye or half of the visual field. These symptoms typically last 20–60 minutes and may be followed by severe headache, nausea, vomiting, and sensitivity to light or sound. Proper treatment and avoidance of triggers can help reduce recurrence.   Cataracts Cataracts can cause blurred vision in one eye due to clouding of the eye’s natural lens, which prevents light from properly reaching the retina. Although cataracts commonly develop in both eyes and are more frequent in older adults, one eye may be affected earlier than the other. Symptoms include blurred or dim vision, eye discomfort, and seeing yellowish or brownish hues. Cataract surgery with intraocular lens replacement is the most effective treatment.   Glaucoma Glaucoma is a serious cause of blurred vision in one eye, resulting from abnormally high intraocular pressure that damages the optic nerve. Acute glaucoma can develop rapidly in one eye, causing severe eye pain, redness, nausea, vomiting, and sudden vision loss. This is an ophthalmic emergency that requires immediate treatment to prevent permanent blindness.   Intraocular Bleeding Waking up with blurred vision in one eye may indicate intraocular bleeding, particularly in individuals with high blood pressure, diabetes, or recent eye trauma. Vision may suddenly become cloudy, with dark spots or floating shadows, and sometimes eye pain. This condition is an eye emergency and requires urgent evaluation to prevent retinal damage.   Optic Nerve Disorders Blurred vision in one eye may be caused by optic nerve disorders such as inflammation, ischemia, or compression by a tumor. These conditions may occur alone or in association with neurological diseases. Damage to the optic nerve disrupts visual signals to the brain, resulting in blurred vision, double vision, or partial visual field loss, sometimes accompanied by pain around the eye.     Diagnostic Evaluation for Blurred Vision in One Eye If you experience blurred vision in one eye—whether temporary or persistent—you should consult an ophthalmologist promptly for accurate diagnosis and treatment. Diagnostic steps may include medical history review and symptom assessment, basic vision testing including visual acuity and intraocular pressure measurement, detailed eye examination using slit-lamp microscopy, additional investigations such as blood tests to detect underlying conditions, and personalized treatment recommendations.     How to Treat Blurred Vision in One Eye Proper care and treatment can help prevent permanent vision loss and reduce eye health risks.   Artificial Tears For blurred vision caused by dry eye, artificial tears are an effective solution. They improve moisture, reduce irritation, and enhance visual clarity. Liquid drops are suitable for daytime use, while gel formulations are ideal before bedtime. Preservative-free options are recommended for frequent use.   Eye Muscle Exercises Regular eye exercises help relieve muscle tension caused by prolonged focusing and improve flexibility of the eye muscles. Performing these exercises daily can help reduce blurred vision.   Medications Medication selection depends on the underlying cause. Treatments may include eye drops, ointments, or oral medications and should always be used under medical supervision.   Eye-Nourishing Foods Foods rich in vitamins A, C, and E, lutein, zeaxanthin, and omega-3 fatty acids—such as leafy greens, carrots, egg yolks, fatty fish, and berries—support eye health. Adequate hydration is also essential.   Preventing Blurred Vision in One Eye Daily eye care reduces the risk of blurred vision. Wash hands before handling contact lenses, wear sunglasses to protect against UV rays, have annual eye exams, and use blue-light-filter glasses during prolonged screen use.     Why Choose Bangkok Eye Hospital for Treating Blurred Vision in One Eye? Bangkok Eye Hospital provides comprehensive eye care with advanced technology and specialized ophthalmologists. Services include accurate diagnosis, personalized treatment, international-standard equipment, and complete care from consultation to follow-up in a comfortable, patient-centered environment.   Summary Blurred vision in one eye can result from various causes, ranging from dry eye and refractive errors to serious conditions such as cataracts, glaucoma, intraocular bleeding, or optic nerve disorders. Some cases require urgent medical attention. While basic care may help mild cases, sudden or severe symptoms should be evaluated immediately to prevent permanent vision loss.   Frequently Asked Questions (FAQ) How Can I Improve Blurred Vision? Rest your eyes regularly, use artificial tears, perform eye exercises, and consume eye-healthy foods. If symptoms persist, consult an ophthalmologist.   Why Does Blurred Vision in One Eye Occur Suddenly? It may be caused by dry eye, refractive errors, glaucoma, cataracts, bleeding, optic nerve inflammation, or migraines. Some causes are medical emergencies.   Can Blurred Vision in One Eye Resolve on Its Own? Mild cases may improve with rest and proper care, but serious conditions will not resolve without treatment and may lead to permanent vision loss.

A retinal tear is a condition in which a small tear or hole develops in the retina, allowing fluid to accumulate beneath it and increasing the risk of retinal detachment. Retinal tears commonly occur due to shrinkage or incomplete separation of the vitreous gel, which pulls on the retina. Additional risk factors include severe nearsightedness, a family history of retinal detachment, and eye trauma. Treatment options for retinal tears include non-surgical methods such as laser photocoagulation, cryotherapy, or gas injection, as well as surgical procedures like vitrectomy to seal the tear and safely restore vision. Our eyes function much like a camera, with the retina acting as the film that captures images. When the film is damaged, the image becomes unclear. One eye condition that many people may not immediately recognize—but carries significant risk—is a retinal tear. If left untreated, it can lead to permanent vision loss. Understanding its causes, symptoms, treatment options, and preventive measures is essential for protecting long-term eye health.     What Is a Retinal Tear? A retinal tear occurs when the thin layer of nerve tissue inside the eye that receives visual images and sends signals to the brain develops a tear or opening. A key factor in this condition is the vitreous gel, which lies between the lens and the retina. In younger individuals, the vitreous is clear and stable, but with age it gradually becomes more liquid and degenerates. Sudden eye movements or traction can cause the vitreous to pull on the retina, leading to a tear or rupture. This can result in visual disturbances and interfere with daily life.     Causes and Risk Factors of Retinal Tears Retinal tears often begin with subtle abnormalities. Common causes and risk factors include:   People with high myopia, especially those who have been nearsighted since childhood, tend to have thinner and more stretched retinal structures, making tears more likely. A family history of retinal detachment or retinal tears increases genetic risk, as some individuals inherit fragile retinal tissue or weaker eye structures. Previous eye surgeries, such as cataract surgery, may alter internal eye structures or vitreous movement, increasing the risk of retinal tears or detachment. Systemic conditions like diabetes can weaken retinal blood vessels, while inflammation, infection, or tumors inside the eye can compromise surrounding tissues and lead to tearing. Severe eye trauma from accidents, sports injuries, or blunt force can cause immediate retinal tears, especially in individuals with existing risk factors. Age-related vitreous degeneration causes the gel to shrink and separate from the retina. If certain areas remain firmly attached, traction during shrinkage may result in a retinal tear.   Symptoms of a Retinal Tear: Warning Signs That Require Immediate Medical Attention Is a retinal tear dangerous? Yes—it is considered a serious condition. Early recognition of symptoms can significantly reduce the risk of vision loss.   Flashes of light, especially when moving the eyes Floating spots or lines (floaters) in the field of vision Distorted or blurred vision in part of the visual field A shadow or dark curtain blocking part of the vision Sudden vision loss if the tear progresses to retinal detachment   How Is a Retinal Tear Diagnosed? A retinal tear cannot be seen with the naked eye and may present symptoms similar to other eye conditions. Ophthalmologists rely on specialized diagnostic tools such as ophthalmoscopes with high magnification and illumination, slit-lamp microscopes with special contact lenses, and ultrasound imaging in cases with intraocular bleeding. These methods allow accurate diagnosis and timely treatment planning.   Non-Surgical Treatment Options for Retinal Tears If the retinal tear is mild and has not yet caused retinal detachment, non-surgical treatment may be sufficient:   Laser Photocoagulation Laser treatment seals the retinal tear to prevent fluid from entering beneath the retina. It is minimally invasive, low-risk, and allows patients to return home the same day without recovery time. Cryotherapy (Cryopexy) This method uses controlled freezing to seal the retinal tear, similar in purpose to laser treatment. Pneumatic Retinopexy A gas or air bubble is injected into the eye to press the retina back into place and prevent fluid accumulation. This technique is often combined with laser or cryotherapy, depending on the physician’s assessment. Surgical Treatment for Retinal Tears Surgery is required when retinal tears are severe or have progressed to retinal detachment. Two primary surgical methods include:   Scleral Buckling A supportive material is placed around the outside of the eye to push the retina back against the eye wall. Laser or cryotherapy may be used in combination to seal the tear. Vitrectomy A minimally invasive procedure using small instruments inserted into the eye to remove the vitreous gel and repair the retina. This technique involves smaller incisions, less irritation, and faster recovery. How Dangerous Is a Retinal Tear? The most serious complication of a retinal tear is retinal detachment. When a tear develops, fluid from inside the eye can seep beneath the retina, gradually pushing it away from the underlying tissue that supplies oxygen and nutrients. Once detached, the retina loses its blood supply, causing retinal cells to die rapidly. Without prompt treatment, this can result in permanent vision loss. Treating a retinal tear early is therefore critical in preventing retinal detachment.     How to Prevent Retinal Tears Although some risk factors such as age and genetics cannot be controlled, the risk of retinal tears can be reduced through early detection and preventive care:   Regular eye examinations, especially for individuals with high myopia, older adults, or those with diabetes Avoiding eye trauma and high-impact activities Managing chronic conditions such as diabetes and high blood pressure Reducing excessive eye strain and resting the eyes when symptoms occur Monitoring warning signs such as floaters, flashes, or visual distortion and seeking immediate medical care Following ophthalmologist recommendations, including preventive laser treatment for high-risk patients Why Choose the Retinal Center at Bangkok Eye Hospital? Bangkok Eye Hospital is dedicated to providing comprehensive care for retinal tears through advanced technology and experienced retinal specialists. Patients receive thorough eye and retinal examinations for accurate diagnosis and personalized treatment planning.   Treatment options include laser therapy, cryotherapy, and vitrectomy surgery, ensuring safe and effective outcomes. Treatment costs vary depending on severity and the number of procedures required. After treatment, patients receive close follow-up care, vision rehabilitation, and personalized self-care guidance to ensure comfort and optimal recovery throughout the treatment journey.   Summary A retinal tear occurs when the retina develops a tear or opening, allowing fluid to accumulate and increasing the risk of retinal detachment. Individuals with high myopia, advanced age, or a family history of retinal disease are at higher risk. Common symptoms include floaters, flashes of light, and distorted vision. Without prompt treatment, permanent vision loss may occur.   Prevention includes regular eye exams, avoiding eye trauma, and maintaining overall health. For those experiencing symptoms or seeking early screening, consultation and treatment are available at Bangkok Eye Hospital.   Frequently Asked Questions (FAQ) Can a retinal tear heal on its own? No. Retinal tears do not heal naturally. Without treatment, fluid may accumulate beneath the retina, leading to retinal detachment and permanent vision loss. Immediate evaluation by an ophthalmologist is essential.   Is treatment for a retinal tear painful? Laser or cryotherapy treatments are usually performed in an examination room, take only a short time, and cause minimal or no pain due to the use of local anesthetic eye drops.   Does everyone with a retinal tear need surgery? Not always. If the tear is detected early and there is no retinal detachment, laser or cryotherapy treatment may be sufficient. Surgery is required only when retinal detachment has already occurred.