မျက်လုံး ကျန်းမာရေး : #Nutrition

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What Is Thin Cornea? Causes, Symptoms, and Eye Care Tips

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.
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Boost Your Eye Health with Lutein and Zeaxanthin

Boost Your Eye Health with Lutein and Zeaxanthin When it comes to keeping your eyes in top shape, it's not just about vitamin A. Dive into the world of Lutein and Zeaxanthin, the eye-boosting heroes found in colorful fruits and veggies. In this guide, we'll break down their role in shielding your eyes from UV rays, slowing down cataracts, and reducing the risk of age-related macular degeneration (AMD). Let's make eye health easy to understand.   Lutein and Zeaxanthin: Your Eye's Bodyguards Meet Lutein and Zeaxanthin, your natural eye bodyguards. These antioxidants are your eyes' first line of defense. Learn how they work to protect your eyes by blocking harmful UV rays and preserving your precious optic nerve cells. And guess what? You can find these superheroes in delicious foods like kale and spinach!   Keeping Cataracts at Bay Concerned about cataracts? Don't worry; Lutein and Zeaxanthin have your back. Find out how these nutrients can slow down cataract development. We'll explain how they combat free radicals, those sneaky culprits behind cataracts. You'll be equipped to safeguard your vision naturally.   A Clear Path to Preventing AMD Age-Related Macular Degeneration can be a real vision spoiler. But guess what? Maintaining healthy levels of Lutein and Zeaxanthin can significantly reduce your AMD risk. We'll uncover the connection between these nutrients and AMD prevention. It's easier than you think.   Conclusion: It's time to give your eye health a boost with Lutein and Zeaxanthin. By adding these nutrients to your diet, you're not just protecting your eyes from UV harm; you're also slowing cataract formation and decreasing your risk of age-related macular degeneration. This user-friendly guide simplifies eye health, so you can keep your vision crystal clear naturally.
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Nutritious Foods for Children's Eye Health

Nutritious Foods for Children's Eye Health During the crucial developmental ages of 3 to 10, parents should ensure that their children receive a diverse range of nutrients to support healthy eyes. Choosing to include fish with high omega-3 content in their diet can help maintain good eye health. Examples of such fish include salmon, mackerel, or fish that are easily consumed by children, like anchovies or white-fleshed seafood such as frozen pollock and croaker. It's recommended to include a variety of fish types in the diet and aim to consume seaweed at least four times a week.   In addition to fish, green leafy vegetables should be a daily part of their diet, with a recommended serving of 100 grams per day. Fruits are essential, and at least one type should be included in their daily intake. Drinking a glass of milk or more per day is also advisable.   When possible, it's best to avoid fast food or processed foods and sugary snacks that contain high levels of salt and sugar, which can be harmful to eye health.   Foods Rich in Vitamin A Red eggs Butter Hard cheese Carrots Spinach   Foods Rich in Calcium Milk Dairy products Fish suitable for children Seaweed Paprika Tomatoes Spinach   Foods Rich in Protein, Essential for Eye Health Eggs Peanuts Fish with high omega-3 content. Lean animal meats   Foods Containing Nutrients that Support Eye Structure and Function Cabbages Broccoli Leafy greens Fruits Carrots   Foods with Nutrients that Nourish the Eyes Plant sprouts Avocado Fatty fish and fish oil products   Ensuring a balanced diet with these foods can help promote and maintain good eye health in growing children.  
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Afternoon Fatigue: Foods to Combat Drowsiness

Afternoon Fatigue: Foods to Combat Drowsiness Feeling drowsy and lethargic during the late afternoon is a widespread issue, particularly among young working individuals. Coping with afternoon drowsiness can be challenging, as it affects productivity and can lead to irritability and reduced work performance. In some cases, it could be associated with conditions like hypoglycemia, often caused by consuming sugary and starchy foods.   If you struggle with afternoon drowsiness and are uncertain about how to combat it, this health guide suggests four foods to help alleviate such symptoms:   Vitamin C-Rich Fruits: Fruits like guava, oranges, and broccoli are rich in vitamin C, which helps combat fatigue induced by stress and anxiety. Chromium-Containing Fruits: Apples, bananas, and sweet potatoes, which are rich in chromium, can help regulate blood sugar levels and provide an energy boost. Nutrient-Dense Seeds: Nuts, including almonds and walnuts, whole grains like brown rice, and legumes such as lentils, are packed with essential nutrients like magnesium and potassium. These elements nourish the nervous system and promote mental clarity and alertness. Healthy Fats from Fish: Incorporating fish with omega-3 fatty acids into your diet provides an excellent source of protein and beneficial fats. These fats not only support physical vitality but also improve concentration and memory.   With these dietary adjustments, you can bid farewell to afternoon drowsiness and regain your energy and focus. Remember that your food choices play a crucial role in combating fatigue and enhancing your overall well-being.   For more health tips and nutritional advice, explore our comprehensive resources.        
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