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.      

Intravitreal injection is a treatment in which medication is injected directly into the vitreous humor to treat retinal diseases, improve vision, and control retinal swelling or leakage. The procedure begins with an eye evaluation, followed by sterilization and local anesthesia. The ophthalmologist then precisely injects the medication into the vitreous and monitors the eye afterward for safety. Intravitreal injections deliver medication directly to the retina, providing rapid and targeted effects. The procedure is minimally painful, safe, and usually does not require hospital admission. Intravitreal injection is an effective and safe treatment for retinal diseases. It involves injecting medication directly into the vitreous cavity of the eye, allowing the drug to act quickly and precisely at the affected area. Understanding the procedure can help patients feel more confident and prepared for treatment.     What Is Intravitreal Injection? Intravitreal injection is a medical procedure used to treat various retinal and vitreous conditions. The ophthalmologist injects medication directly into the vitreous cavity located in the center of the eye so the medication can work rapidly and precisely. It is commonly used for conditions such as age-related macular degeneration (AMD), diabetic retinopathy, abnormal retinal blood vessels, retinal bleeding, and swelling.   The advantage is that the medication acts directly at the site of disease without extensive systemic circulation, reducing side effects. However, the procedure must be performed in a sterile environment by an ophthalmologist to prevent infection or complications such as inflammation or temporary increased eye pressure.   Who Is Intravitreal Injection Suitable For? This treatment is suitable for individuals with retinal conditions caused by abnormal blood vessels, including:   Diabetic Retinopathy, particularly diabetic macular edema, where damaged retinal blood vessels leak fluid or blood, causing blurred or distorted vision. Without treatment, permanent vision loss may occur. Wet Age-Related Macular Degeneration (Wet AMD), characterized by abnormal blood vessel growth under the retina that leaks fluid or blood, leading to central vision impairment. Early treatment, such as anti-VEGF injections, can slow disease progression. Retinal Vein Occlusion, where blockage of retinal veins causes fluid leakage, blurred vision, and potential long-term complications if untreated.   Intravitreal Injection Procedure The procedure is quick and usually painless due to local anesthesia. Steps include:   Local anesthetic eye drops are applied, and the eye area is disinfected to prevent infection. The ophthalmologist uses a small instrument to keep the eyelids open and injects medication through the sclera using a very fine needle. The injection takes only a few seconds. The eye is re-examined afterward, and post-treatment care instructions are provided. Benefits of Intravitreal Injection Intravitreal injections are highly effective because the medication targets the retina directly, providing fast and precise results. The procedure is minimally invasive, takes only minutes, involves little discomfort, and patients can usually return home immediately. It is considered a global standard treatment with a high safety profile.     Post-Injection Precautions Proper post-injection care helps reduce side effects and promotes faster recovery:   Avoid rubbing or scratching the eyes for at least 3–5 days to prevent infection. Avoid getting water into the eyes for 2–3 days; use a damp cloth instead of washing the face directly. Use prescribed eye drops exactly as directed and wash hands before and after application. Get adequate rest and avoid prolonged screen use. Avoid heavy lifting, strenuous exercise, or bending the head downward during the first week. Avoid swimming or exposure to potentially contaminated water to reduce infection risk. Medications Used for Intravitreal Injection In addition to advanced retinal surgery, Bangkok Eye Hospital utilizes Anti-VEGF medications to inhibit abnormal blood vessel growth and reduce retinal swelling, which are key causes of blurred vision in diabetic retinopathy and age-related macular degeneration. Common internationally recognized medications include Lucentis and Eylea.   To provide effective and cost-efficient treatment, Bangkok Eye Hospital primarily uses Avastin and Vabysmo, each offering specific advantages depending on the patient’s condition.   Avastin Avastin is widely used worldwide due to its effectiveness and affordability, making long-term treatment more accessible for patients.   Vabysmo Vabysmo represents a newer innovation using dual-pathway technology that inhibits both VEGF and Ang-2 proteins, reducing inflammation and abnormal vessel fragility. It often provides longer-lasting retinal dryness and may reduce the frequency of injections.   At Bangkok Eye Hospital, retinal specialists carefully evaluate each patient to determine the most suitable medication based on eye condition and lifestyle, ensuring safety and optimal visual outcomes.     Why Choose Intravitreal Injection at Bangkok Eye Hospital? Bangkok Eye Hospital provides comprehensive retinal care with advanced technology and experienced retinal specialists. Services include detailed eye examinations, modern surgical techniques, intravitreal injections, close post-treatment follow-up, personalized treatment guidance, and comfortable care throughout the treatment process.   Summary Intravitreal injection is an effective treatment for retinal diseases such as diabetic macular edema, wet AMD, and other vascular retinal conditions. The procedure is quick, minimally painful due to local anesthesia, and allows medication to act directly on the retina for rapid results. Patients typically go home the same day without hospitalization. For comprehensive retinal care, visit Bangkok Eye Hospital.   Related Articles Recognizing Retinal Swelling Symptoms Retinal Hole Causes and Treatment Subconjunctival Hemorrhage: Causes and Treatment Frequently Asked Questions (FAQ) Common questions about intravitreal injections to help patients better understand this treatment.   How many injections are needed? The number of injections depends on the disease type and severity. Some patients may require a single injection, while others need repeated treatments as advised by their ophthalmologist.   How much does an intravitreal injection cost? Costs vary depending on the medication type, disease severity, number of injections required, and retinal condition. Consultation with an ophthalmologist is recommended for accurate pricing.   How long does recovery take? Vision improvements may begin within 1–2 weeks after injection, though recovery varies depending on individual response and disease severity. Follow-up treatments may be necessary.

Dry eye syndrome occurs when the eyes produce insufficient tears or poor-quality tears, leading to dryness, irritation, discomfort, or visual disturbance. Common vision problems include myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia. Vitreous degeneration refers to changes in the eye’s vitreous gel becoming more liquid or forming clumps, causing floaters. Macular degeneration involves deterioration of the central retina, leading to distorted, blurred vision and possible vision loss. Cataracts cause clouding of the eye’s lens and blurred vision; glaucoma results from increased eye pressure damaging the optic nerve and risking vision loss; pterygium is degeneration of conjunctival tissue that may cause blurred vision or increased astigmatism; pinguecula is a similar conjunctival growth that does not extend onto the cornea. We rely on our eyes constantly to observe the world around us, which places significant strain on them and increases the risk of eye problems. Understanding common eye diseases and vision conditions helps us care for and protect our eyes properly, recognize early symptoms, and seek timely treatment to reduce the risk of future complications.     Dry Eye Syndrome Dry eye syndrome occurs when the eyes cannot produce enough quality tears, leading to irritation, burning sensations, foreign body sensation, or excessive tearing. Common causes include prolonged screen use, dry or windy environments, and extended contact lens wear. Relief and prevention include using artificial tears, resting the eyes regularly, blinking frequently, and avoiding dry environments.     Refractive Vision Problems Refractive errors are among the most common vision issues across all age groups. They occur when light entering the eye fails to focus precisely on the retina, resulting in blurred vision. Types include:   Myopia (Nearsightedness) Myopia occurs when the cornea is too curved or the eyeball is elongated, causing light to focus in front of the retina. This results in clear near vision but blurred distance vision. People may squint or strain their eyes to see clearly and sometimes experience headaches.   Genetics plays a major role, especially if parents are myopic. Prolonged near work, limited outdoor activity, and excessive screen use can worsen symptoms.   Hyperopia (Farsightedness) Hyperopia may occur from birth or develop with age, resulting in difficulty focusing on near objects.   Congenital Farsightedness Occurs when the cornea is too flat or the eyeball is shorter than normal, causing light to focus behind the retina. Individuals typically see distant objects clearly but struggle with near vision. It is often hereditary.   Presbyopia Presbyopia results from aging as the eye’s lens stiffens and loses flexibility, reducing focusing ability. Symptoms include difficulty reading small print, eye strain, headaches, sensitivity to light, and reduced night vision.   Astigmatism Astigmatism occurs when the cornea has an irregular shape, causing multiple focal points instead of one. Symptoms include eye strain, blurred or distorted vision, glare sensitivity, and difficulty seeing at night.   Causes may include congenital corneal irregularities, injury, eye surgery, or conditions such as keratoconus.   Vitreous Degeneration The vitreous is a clear gel filling the back of the eye. Vitreous degeneration occurs when the gel liquefies or forms clumps, leading to floaters or flashes of light.   It commonly occurs with aging, especially after age 50 or in individuals with myopia. Untreated cases may increase the risk of retinal tears or detachment.   Common Eye Diseases Eye diseases can significantly affect vision if not properly diagnosed and treated. Understanding symptoms and treatments helps protect eye health.   Cataracts Cataracts occur when the eye’s lens becomes cloudy, reducing light transmission and gradually impairing vision. Common in older adults but may occur in younger individuals due to steroid use, trauma, or inflammation.   Glaucoma Glaucoma involves optic nerve damage often linked to high eye pressure. Acute cases may cause pain, blurred vision, halos around lights, headache, nausea, or vomiting, while chronic glaucoma may progress silently.   Pterygium and Pinguecula Pterygium is degeneration of conjunctival tissue growing toward the cornea, potentially causing blurred vision or astigmatism. Pinguecula is similar but does not invade the cornea.     Age-Related Macular Degeneration Age-related macular degeneration (AMD) affects the central retina, usually in individuals over 60, though increasingly seen earlier. It may cause distorted central vision, blurring, or dark spots.   While not curable, progression can be slowed through regular screening, healthy lifestyle habits, UV protection, balanced nutrition, exercise, weight control, and avoiding smoking.   Why Get Eye Checkups at Bangkok Eye Hospital? Bangkok Eye Hospital provides comprehensive eye care using advanced technology and experienced ophthalmologists across specialties. Services include detailed diagnosis, treatment, follow-up care, personalized consultation, and a comfortable treatment environment.   Summary Regular eye care is essential. Annual eye examinations help detect abnormalities early. Adequate rest, balanced nutrition rich in vitamins A and C, and proper visual habits support eye health. Visit Bangkok Eye Hospital for comprehensive eye care services.   Related Articles LASIK for Myopia: Preparation and Benefits Glaucoma Treatment and Prevention Understanding Retinitis: Causes and Treatment Frequently Asked Questions (FAQ) Common questions about eye health and vision problems to help patients better understand prevention and treatment.   How should older adults care for their vision? Regular eye exams at least annually, adequate rest, hydration, balanced diet rich in antioxidants, avoiding smoking, and controlling blood sugar are important preventive measures.   How can vision problems in children be prevented? Encourage regular breaks during near work, limit screen time, promote outdoor activities, ensure adequate lighting, and schedule regular eye examinations.   What should I do if I experience dizziness or blurred vision? Consult an ophthalmologist for eye examination, adjust glasses or contact lenses if necessary, rest your eyes regularly, and avoid bright glare. Seek immediate medical attention if symptoms worsen.

Patients who may require retinal surgery include those with retinal detachment, severe diabetic retinopathy, macular holes, epiretinal membranes, or vitreous hemorrhage. Main retinal surgery techniques include vitrectomy, which removes cloudy or blood-filled vitreous gel while repairing the retina using laser treatment, gas injection, or silicone oil; another method is scleral buckling, which supports the retina externally to help it reattach to the eye wall. Technologies used in retinal surgery include micro-surgical instruments, surgical microscopes, intraocular laser systems, silicone oil or gas tamponade, and OCT imaging to assess retinal damage in detail. Retinal surgery is a complex and important treatment for patients with severe eye conditions such as retinal tears, detachment, or advanced retinal degeneration. Without timely treatment, these conditions may lead to permanent vision loss. Understanding surgical procedures, technologies used, and treatment indications can help reduce anxiety and allow patients and families to prepare physically and emotionally. Strict adherence to pre- and post-operative instructions also improves recovery outcomes and reduces the risk of complications.     Who Needs Retinal Surgery? Retinal surgery is considered when retinal damage becomes severe and cannot be effectively treated with other methods. Conditions requiring surgery include:   Retinal Detachment Retinal detachment is an ophthalmic emergency where the retina separates from underlying tissue, disrupting visual function. Without prompt treatment, permanent vision loss may occur. Symptoms include flashes of light, floaters, a dark curtain over part of vision, or blurred sight. Early diagnosis and surgical treatment by an ophthalmologist are essential.   Macular Degeneration Macular degeneration, especially wet AMD, involves abnormal blood vessel growth beneath the retina. These fragile vessels may leak blood or fluid, causing central vision distortion, blurring, or dark spots.   The disease can progress rapidly. Treatments such as anti-VEGF injections, laser therapy, or retinal surgery may slow progression and preserve vision.   Diabetic Retinopathy Diabetic retinopathy results from chronic high blood sugar damaging retinal blood vessels, leading to leakage, swelling, or bleeding. This causes blurred vision and, if untreated, permanent vision loss.   Treatment includes blood sugar control, laser therapy, intraocular injections, or retinal surgery depending on severity. Regular eye exams are essential for early detection.   Macular Hole A macular hole is a small defect in the central retina responsible for detailed vision. It may cause distorted central vision while peripheral vision remains normal.   Common causes include aging, vitreous traction, or eye injury. Surgery is often required to close the hole and improve vision.   Epiretinal Membrane Epiretinal membrane is a thin scar tissue layer on the retinal surface, often affecting the macula. It can distort vision, causing curved lines or double vision.   Mild cases may not require treatment, but severe cases affecting daily life may require surgical removal.   Vitreous Hemorrhage Vitreous hemorrhage occurs when blood leaks into the vitreous gel, causing hazy or dark vision. Severe cases may significantly impair vision.   Common causes include diabetic retinopathy, retinal tears, trauma, or abnormal retinal vessels. Treatment ranges from observation to laser therapy or vitrectomy surgery.     Preparing for Retinal Surgery Proper preparation helps reduce complications and supports faster recovery.   Consult your ophthalmologist thoroughly and disclose medical history, medications, and chronic conditions. Preoperative tests may include blood tests or ECG. Inform your doctor about all medications. Some drugs affecting blood clotting may need temporary discontinuation. Fasting for at least 6–8 hours before surgery is typically recommended. Arrange transportation and a caregiver for post-operative support due to temporary blurred vision. Retinal Surgery Procedures Retinal surgery involves various techniques depending on disease type and severity.   Vitrectomy This procedure uses very fine instruments inserted through small incisions in the white of the eye. The surgeon removes cloudy or blood-filled vitreous gel, treats underlying retinal conditions with laser therapy, and may inject gas or silicone oil to help reattach the retina. Dissolvable sutures close the incisions.   Scleral Buckling This technique places a silicone band or sponge on the outer eye wall to support retinal reattachment. It is commonly used for retinal detachment caused by tears.   The material typically remains permanently without complications. Some patients may require fluid drainage beneath the retina. Temporary redness or blurred vision may occur initially.     Technology Used in Retinal Surgery Modern retinal surgery combines surgical skill with advanced medical technology for improved safety and precision.   Micro-instruments: Extremely small surgical tools minimize incision size and speed recovery. Surgical microscope: Provides magnified visualization of delicate retinal structures. Endolaser: Treats abnormal vessels or seals retinal tears internally. Silicone oil or gas: Helps press the retina back into position during healing. OCT imaging: Provides detailed retinal scans before and after surgery. Postoperative Care Guidelines Proper self-care after surgery improves recovery and reduces complications.   If gas or silicone oil is injected, patients may need specific positioning such as face-down or side-lying. Use prescribed eye drops exactly as directed. Avoid water exposure to the eye during the first week and refrain from rubbing the eye. Avoid air travel if gas is present due to pressure changes. Avoid heavy lifting, strenuous activity, and contact sports. Rest adequately and limit intensive visual tasks. Expected Results and Recovery Time Retinal surgery helps correct abnormalities and prevent future vision loss. Outcomes depend on disease severity. Some patients see improvement quickly, while others may take months. Typical recovery lasts about 1–2 weeks, with activity restrictions during healing.   Cost of Retinal Surgery Costs vary based on surgical technique, technology, and individual treatment needs. Fees typically include surgeon costs, operating room charges, medications, and intraocular lens expenses if required.   Retinal Surgery Technology at Bangkok Eye Hospital Bangkok Eye Hospital utilizes advanced PPV (Pars Plana Vitrectomy) technology with the Constellation Vision System, internationally recognized for treating complex retinal conditions such as detachment, diabetic retinopathy, and macular disorders.   The ULTRAVIT® vitrectomy cutter operates at extremely high speeds, allowing gentle vitreous removal with minimal retinal traction. Intelligent intraocular pressure control maintains stable eye pressure throughout surgery, reducing complication risks.   High-resolution Xenon illumination enhances visualization of delicate retinal tissue, while PurePoint® endolaser technology precisely treats tears or abnormal vessels. These integrated technologies allow comprehensive retinal repair in a single procedure.   Small-gauge surgery results in tiny self-sealing incisions, minimizing irritation and accelerating recovery. Postoperative positioning may still be necessary if gas or silicone oil is used.   Why Choose Retinal Surgery at Bangkok Eye Hospital? Bangkok Eye Hospital provides comprehensive retinal surgery services using advanced technology and experienced specialists from the Retina Center. Patients receive:   Comprehensive eye examinations for precise treatment planning. Advanced technologies such as micro-surgery tools, laser therapy, and OCT imaging. Close postoperative monitoring and rehabilitation support. Personalized treatment advice tailored to lifestyle and eye condition. Comfortable care throughout surgery and recovery. Summary Retinal surgery is essential for conditions such as retinal detachment, macular holes, or diabetic retinopathy. Modern techniques including vitrectomy and scleral buckling, supported by advanced technology, enhance safety and treatment outcomes. Patients should follow preoperative instructions, arrange post-surgical care, and attend follow-up appointments. Recovery typically takes 1–2 weeks depending on severity. Consult Bangkok Eye Hospital for comprehensive retinal care.   Related Articles What Causes Retinal Holes? Symptoms and Treatment Options Signs of Retinal Swelling You Should Not Ignore Diabetic Retinopathy Symptoms and Prevention Frequently Asked Questions (FAQ) Common questions about retinal surgery to help patients prepare confidently.   What symptoms occur after retinal surgery? Temporary blurred vision, mild irritation, tearing, floaters, or flashes may occur. Severe pain or worsening vision should be reported immediately.   How long is hospitalization required? Typically 1–2 days depending on surgical complexity and patient condition.   Why must patients lie face-down after surgery? Face-down positioning helps gas or silicone oil support retinal reattachment, improving healing and visual outcomes.

Having both myopia and farsightedness together refers to a condition where both near and distant vision are unclear, commonly occurring in people with myopia who begin to develop age-related presbyopia. Both myopia and farsightedness can be treated simultaneously with glasses, contact lenses, LASIK surgery, or intraocular lens implantation, depending on an ophthalmologist’s recommendation. The choice of treatment depends on vision prescription, age, corneal thickness, and professional advice from an ophthalmologist. Having both myopia and farsightedness simultaneously is a condition found in some adults, particularly when individuals with myopia begin to develop presbyopia. This causes abnormalities in both near and distance vision, affecting daily activities such as reading, working on screens, or driving. Understanding the causes and treatment options helps patients choose appropriate, safe, and effective eye care solutions.     What Does Having Both Myopia and Farsightedness Mean? Having both myopia and farsightedness means both near and distant vision become unclear. People who already have myopia may use glasses to improve distance vision, but when presbyopia develops with age, those same glasses may no longer provide clear near vision, requiring adjustments or new lenses.   In people with myopia, the issue is mainly due to the eye’s physical structure — either an elongated eyeball or an overly curved cornea — causing incoming light to focus in front of the retina. This results in blurred distance vision and often develops during childhood or adolescence.   Presbyopia, on the other hand, is unrelated to eyeball length. It is a natural age-related condition typically beginning after age 40. The crystalline lens inside the eye gradually loses elasticity and the focusing muscles weaken, reducing the eye’s ability to focus on near objects.   When both conditions occur together, the structural myopia remains unchanged while age-related lens stiffness develops concurrently.   This situation can be challenging: distance vision remains blurry due to existing myopia, while wearing myopic glasses may worsen near vision because the aging lens can no longer adjust focus effectively.   However, individuals with mild myopia (around -1.00 to -2.00 diopters) may sometimes read comfortably without glasses because their natural focal point aligns with reading distance. Once they wear myopic glasses again, near vision blur often returns.     Correction and Treatment Options Treatment focuses on ensuring incoming light accurately focuses on the retina. Options generally fall into three main categories:   1. External Vision Correction Devices Using external devices is a safe and easily adaptable option for those with both myopia and farsightedness.   Progressive Eyeglasses Progressive lenses are currently the most popular option and represent a modern standard for working adults. These seamless lenses gradually change prescription from top to bottom — distance correction at the top, intermediate vision in the middle (e.g., computer use), and near vision at the bottom.   The main advantage is clear vision at all distances without switching glasses. They also lack visible dividing lines, maintaining a youthful appearance. However, some users may need a short adaptation period.   Contact Lenses Multifocal contact lenses function similarly to progressive glasses, incorporating multiple prescriptions in a single lens. They often use concentric ring designs to support both near and distance vision.   The brain adapts by selecting the clearest image automatically. While convenient and glasses-free, sharpness may be slightly reduced compared with eyeglasses, particularly in low light, and adaptation may take time.   Another option is monovision, where one eye is corrected for distance (dominant eye) and the other for near vision. The brain combines both images for functional daily vision.   This approach is often more affordable than multifocal lenses but may slightly reduce depth perception, affecting night driving or 3D perception in some individuals.   A combined approach involves wearing myopia-correcting contact lenses for clear distance vision and using reading glasses only when needed. This provides excellent clarity at lower cost but does not eliminate glasses entirely.   Because fitting contact lenses for this condition is complex, professional evaluation by an ophthalmologist or optometrist is essential.   One drawback may be higher long-term costs and the need for careful lens hygiene.   2. Laser Vision Correction LASIK (Laser-Assisted in Situ Keratomileusis) permanently corrects refractive errors including vision prescriptions such as myopia, hyperopia, and astigmatism. The procedure involves creating a corneal flap, reshaping the cornea with laser energy, and repositioning the flap. Recovery is typically quick, with clearer vision often within 24–48 hours. Temporary dry eyes, glare, or halos at night may occur during adjustment.   It is suitable for individuals wanting to reduce reliance on glasses or contact lenses with adequate corneal thickness. Those with severe dry eyes, chronic eye disease, or unsuitable prescriptions may consider PRK or refractive lens exchange (RLE).   3. Intraocular Lens Implant Surgery RLE (Refractive Lens Exchange) involves replacing the natural lens with an artificial intraocular lens (IOL). It is suitable for individuals with significant combined myopia and farsightedness or presbyopia. Modern IOLs can correct multiple refractive errors simultaneously.     How to Choose the Right Treatment Selecting the best treatment depends not only on visual clarity needs but also on several factors:   Lifestyle and preferences: Glasses or contact lenses suit those avoiding surgery, while LASIK or RLE offer longer-term solutions. Overall eye health: Detailed eye examinations assess corneal thickness, retinal health, and other conditions to determine safe treatment. Cost considerations: Surgical treatments typically cost more upfront than glasses or contact lenses. Expected outcomes: Laser surgery may reduce but not always eliminate the need for reading glasses.     Why Choose LASER VISION Center at Bangkok Eye Hospital? Bangkok Eye Hospital provides comprehensive eye care with advanced technology at the LASER VISION Center and experienced ophthalmologists. Services include accurate diagnosis, treatment for myopia, hyperopia, and other vision problems, along with continuous follow-up care. The hospital emphasizes personalized consultation, appropriate treatment recommendations, and a supportive environment for safe, comprehensive eye care.   Summary Combined myopia and farsightedness occur when individuals with myopia develop age-related presbyopia, causing both near and distance vision difficulties. Existing myopic glasses may improve distance vision but not near vision. Correction options include glasses, contact lenses, LASIK, or intraocular lens surgery. The best choice depends on prescription, age, eye health, and lifestyle. For comprehensive diagnosis and treatment, visit Bangkok Eye Hospital, equipped with advanced technology, specialists, and dedicated eye care centers.   Related Articles Understanding Vision Prescriptions and Their Impact on Daily Life PRK vs LASIK: Eye Surgery Techniques You Should Know Before Deciding FemtoLASIK: Advanced, Safe, and Precise Vision Correction Technology Frequently Asked Questions (FAQ) People with both myopia and farsightedness often have questions about symptoms and treatment options. Here are common FAQs:   Can LASIK treat both myopia and farsightedness? Yes, LASIK can treat both conditions, but suitability depends on corneal thickness and eye health. Some patients may require alternative options such as intraocular lenses for optimal safety and results.   How should contact lenses be chosen? People with combined refractive errors may use multifocal or progressive contact lenses designed for multiple focusing distances. Consultation with an ophthalmologist or contact lens specialist is recommended for proper selection.   What are the symptoms? Symptoms include blurred near and distance vision. Individuals who previously used myopic glasses may find distance vision clear but struggle with reading or phone use due to presbyopia, requiring adjustments in eyewear.