People are well aware of the harmful effects that UV rays have on the skin, but very few know that UV rays can damage their eyes as well. The tissue that human eye is made up of is one of the most sensitive tissues in the body and hence, the most vulnerable. The increasing level of UV radiation reaching the Earth s surface every minute has made it indispensable to take the required precautionary measures to protect the eyes.

What are UV rays?

Sunlight consists of 3 types of radiations - Infrared, Visible light and UltraViolet. Artificial sources like lasers, tanning beds and welding machines also emit UV radiation.

There are three types of UV radiations - UV-A, UV-B and UV-C. 

UV-C is absorbed by the ozone layer and does not possess any risk. It is UV-A and UV-B radiations that adversely affect the eyes and vision.

Impact of UV rays on  eyes

Too much exposure to UV rays can affect vision, harm the eyes, and deteriorate overall eye health. There are various eye problems that are aggravated by excessive exposure to UV radiation:

Macular Degeneration: It is caused by damage to the retina over time by UV rays. It leads to age-related blindness. Too much exposure to UV rays increases the risk of developing macular degeneration.
Cataract: It is the clouding of eye s natural lens - the part of the eye that focuses the light we see. Too much exposure to UV rays increases the risk of developing cataracts. 
Pterygium: Often known as  surfer s eye , pterygium is a pink, non-cancerous growth that is formed on the conjunctiva. UV rays are believed to be responsible for the development of this growth.
Skin Cancer of the Eyelids: Too much exposure to UV rays can cause skin cancer in and around the eyelids.
Photokeratitis: Popularly known as corneal sunburn or  snow blindness , photokeratitis is caused due to excessive short-term exposure to UV-B rays. Photokeratitis occurs when you spend long hours at the beach or skiing. It sometimes leads to temporary vision loss. 
How to protect the eyes from harmful UV rays?

Here are some tips to help ensure that eyes are protected against harmful UV rays:

Always use quality sunglasses that block out 99-100 percent of both UV-A and UV-B radiation when outdoors.
Stay away from tanning beds, and if you use them occasionally, always wear eye protection. 
Wrap around frames should be used if you spend a lot of time outdoors.
Be sure to see your doctor at least every two years.

UV Rays - Are They Damaging Your Eyes?

4 tips for a great eyesight

An important organ of the body, eyes must never be taken for granted and need to be protected at all times. In addition to protecting them, you also need to improve as well as maintain their overall health.

Here are some of the ways of keeping your vision in top form:

1. Eat for good eye vision

To have healthy eyes and consequently good vision, you need to have foods that keep them in good health. Nutrients like Zinc, vitamins C and E, and Omega-3 Fatty Acids can help to fend off age-related sight problems such as cataracts or macular degeneration (a condition characterized by the deterioration of the middle portion of the retina). Foods like eggs, nuts, green leafy vegetables, oranges and citrus fruits are what you need to have to get good eye health. 

2. Kick the Smoke habit

Smoking can adversely affect your eye health and can make you prone to eye conditions like cataracts, macular degeneration and damage of optic nerve (a nerve that transmits impulses from the eyes to the brain). By kicking this habit, you end up saving your eyes from irreversible damage.

3. Use sunglasses

Exposure to the Sun's ultraviolet rays for a long period of time can make you prone to common eye problems including cataracts. To protect them from the Sun's harmful rays, you need to use sunglasses that block 99-100% of Ultraviolet A (UVA) and Ultraviolet B (UVB) rays.

4. Go for a regular eye checkup

Going for regular eye examinations can help in protecting your vision and ensure you see clearly. Eye examinations are important to help you find eye problems like glaucoma (a condition wherein the optic nerve is damaged, resulting in vision loss). A comprehensive eye examination can help in identifying problems like nearsightedness, farsightedness or astigmatism (an eye defect that occurs to a deviated spherical curvature).




4 Tips for a Great Eyesight

The ability to see is one of our greatest powers and it needs to be valued and looked after. Sometimes this involves wearing glasses to improve our vision. Spectacles not only help us see better but also prevent straining and further deterioration of the eye muscles. Here are a few signs to watch out for that will indicate your need for spectacles. Keep in mind however that a comprehensive eye exam is the only way to determine the power required for your spectacles. 

-  Blurred vision
Blurred vision or the inability to focus on something in the distance is one of the first signs or eye deterioration. When it comes to children, watch out for complaints of inability to read the writing on class blackboards.

-  Frequent headaches
Unexplained headaches that come and go could be a sign that you need glasses. These headaches can usually be felt at the end of a long day or after watching television. 

-  Constant squinting
Squinting is a natural way to improve vision. This is because the act of squinting reduces extra light and light scattering thus allowing us to see something clearer. Thus, if you notice yourself squinting more than usual it is time to schedule an eye exam.

-  Difficulty working on a computer
Struggling to read figures and words on a computer screen is usually a sign of poor vision. Try adjusting your screen angle and the distance of the screen from your eyes to see if your vision improves or worsens. 


-  Difficulty adjusting to lights
Sudden increased sensitivity to lights can be a sign of many eye disorders with vision problems being the most common. 


-  Eye strain
Occasional pain in the eyes after a long day or as a result of an allergic reaction is nothing to worry about. However, if this pain persists for a few days, it could be an indication that you need spectacles. 
Deterioration of vision is usually a very gradual process and so you may not realize when it begins. However, the earlier you start wearing corrective glasses to improve your vision the easier it will be to control the deterioration of the eye muscles and you may even be able to rectify your condition completely. So, do not ignore any of these warning signs. Even if you do not have any of these symptoms, it is a good idea to get a thorough eye examination at least once a year.

Common Signs You Need Glasses

5 myths about eye health and the real facts behind them

Your eyes are an important part of your health. There are many things you can do to keep them healthy and make sure you are seeing your best. However, there are a number of myths regarding what you should do and what you shouldn't do when it comes to maintaining good eye health.

Here are 5 of those myths busted:

Myth #1: reading in dim light and sitting too close to the tv hurts your eyes

Fact: sitting too close to the tv, you may feel eye strain or get a headache from reading in the dark, but it will not weaken your eyes. It fatigues your eyes but does not harm your eye health in any way.

Myth #2: eating carrots will improve your vision

Fact: carrots are rich in vitamin a, a nutrient essential for good vision. But eating carrots will only provide a small amount of vitamin a. To get the optimum amount, you need to include other sources of vitamin a in your diet as well, some of which are milk, cheese, egg yolk and liver. Spinach is best for eye health. It has lutein and zeaxanthin, both of which can help prevent cataracts.

Myth #3: if you wear glasses or contacts for a continuous period, your eyes will weaken

Fact: your eyes will not grow weaker by using corrective lenses. The prescription may change over time due to aging or absence of disease but it has nothing to do with your current prescription. Some children have correctable eye problems that do require glasses to improve the condition.

Myth #4: when you get something in your eye, rub it out

Fact: this is not true for everything that gets in your eyes. If any particle falls in your eyes dust it off. But if it is sand and small debris that gets in your eye, don't touch it. Use an eye wash for flushing it out. If an object gets stuck in your eye, don't remove it or rub your eye constantly. Visit a doctor at the earliest because some serious injuries may seem minor at first.

Myth #5: dark sunglasses can protect your eyes from the sun

Fact: the color of sunglass does not ensure eye protection. Look for sunglasses that block both uva and UVB rays. Exposure to the UV-rays of sunlight can have cumulative effects on your eyes. It increases your risk for cataracts, solar retinitis, and age-related vision loss. Even if your contacts have UV protection, wear sunglasses that block 100% of uva and UVB rays for full protection.

If you would like to consult with me privately, please click on 'consult'.
Related Tip: Here's What CRYING Does to Your Body

Sitting Too Close To TV Will Weaken Your Eyes? FALSE.

Glaucoma is a disease that damages your eye's optic nerve. It usually happens when fluid builds up in the front part of your eye. That extra fluid increases the pressure in your eye, damaging the optic nerve.Glaucoma is the second largest cause of eye blindness in the world.

There are several types of Glaucoma:
1. Open-angle Glaucoma
2. Normal-tension Glaucoma
3. Angle-closure Glaucoma
4. Congenital Glaucoma
5. Secondary Glaucoma
6. Glaucoma suspect

How will you know that you are suffering from Glaucoma?
Only half the people with glaucoma are aware that they are suffering from this condition. When Glaucoma develops, there are usually no early symptoms. This is why glaucoma can 'steal' sight gradually.

Symptoms:
1. In its early stages, open-angle Glaucoma has no obvious symptoms. As the disease progresses more blind spots develop in the peripheral (side) view.
2. An attack of angle-closure Glaucoma includes the following:
a. Severe pain in the eye or forehead
b. Redness of the eye
c. Decreased vision or blurred vision
d. Vision rainbows or halos
e. Headache
f. Nausea
g. Vomiting
If you get any of the symptoms rush to your doctor and take an eye exam as soon as possible.

Causes:
1. Eye injury
2. Inflammation of the eye
3. Dilating eye drops
4. Blocked or restricted drainage in your eye
5. Use of steroid-containing medications (pills, eye drops, sprays)
6. Poor or reduced blood flow to your optic nerve
7. High or elevated blood pressure

Who is at Risk for Glaucoma?
People with more risk of developing Glaucoma include people who:
1. Are over age 40
2. Have family members with glaucoma
3. Have high eye pressure
4. Are farsighted or nearsighted
5. Have had an eye injury
6. Have diabetes, migraines, high blood pressure, poor blood circulation or other health problems affecting the whole body.

Types, Causes and Symptoms of Glaucoma

Tip for eye care

This is the worst time of the year, for your eyes. Pollution from firecrackers, smog due to weather change and generally ever increasing vehicular pollution adds up to be the worst for your eye health. 

Protect your eyesight and take care of your eyes by following these simple daily eye care tips.

1. Eat Well: Protect your eyes from within. Eat for good vision. Eat foods that have various nutrients such as omega 3 fatty acids, zinc and lutein, vitamins A, C and E to keep eye problems at bay. Green leafy vegetables, salmon and other oily fishes, eggs and nuts, orange and citrus fruits are great for eyesight.

2. Quit Smoking: For better eye-care leave smoking. This simple activity can make you likelier to get optic nerve damage, macular degeneration and cataracts.

3. Have eye-care routine: Most of us don’t have an eye care routine, which is essential for keeping them fit. So, develop a good eye-care routine. In this routine, practice eye exercises, focusing eyes on a point far away to promote muscle development. Clean eyes everyday with fresh, clean water to reduce eye mites and other problems.

4. Wear Sunglasses: Wearing sunglasses on a regular basis will protect eyes from UV rays and ensure protection. This will help in reducing the chances of getting cataracts and developing macular degeneration.

5. Use Safety Wear: It is important that you regularly wear safety wear problems. For instance, for sports, wear eye protection products, sports goggles or protective face masks.

6. Look away from computer: A lot of us use computers too much for work and recreation. Now is the time to look away from it. Staring at the computer for long can cause eyestrain and blurry vision, trouble focusing at a distance and result in dry eyes as well as neck and shoulder pain with headaches. So, take regular breaks from that computer.

If you would like to consult with me privately, please click on 'Consult'.

Doctor's Advice On How To Keep Your Eyes Safe This Diwali

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