10 surprising facts about your eyes

You never tend to pay a lot of attention to your eyes unless they are affected by some serious disorder or unless your vision is disrupted. But did you know that your eyes are capable of doing much more than you can imagine? here are 10 surprising facts about your eyes you didn't know about.

1. How intricate!

Your eyes take more than 2 million working parts to function. No wonder your eyes are the second most complex organ of your body after your brain.

2. A lot depends on them

As much as 80% of your memories are determined by what you see. Also, 80% of what you learn is because of your eyes.

3. Retina and security

The iris of your eyes has approximately 256 unique characteristics, which is more than even your fingerprints. This is the reason why retina scans are used so widely today for security purposes.

4. It's a colourful world

Your eyes can distinguish between approximately 10 million different colours. And women with a particular kind of genetic mutation can see millions of more colours.

5. Upside-down

The retina of your eyes receives the vision of the outside world as upside down. It is your brain, which flips the image for you so that you can see the world as it is.

6. Sunscreen for the eyes?

It is possible for your eyes to get sunburnt. Therefore, it is advisable for you to wear sunglasses in order to protect your eyes from the ultraviolet radiations.

7. Godspeed!

The eye muscle is the muscle that reacts at the fastest rate out of all the other muscles in your body. It can contract in less than even 1/100th of a second.

8. Paint it red?

The retina of your eyes cannot detect the red colour. The retinas do have green, red and blue receptors, but the red receptor can detect only the colour yellow-green and the green one can recognise blue-green. It is your brain that combines these signals to give you the impression of the colour red.

9. Dreams and sight

Even if you become blind later in life, you can see images in your dreams if you were born with sight.

10. We are blink-eyed peas

You blink approximately 17 times every minute. That makes it 5.2 million times in a year.

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

Surprise Yourself with these 10 Facts about Your EYES!

Eyeglasses and contact lenses are both used for vision correction. Both of the options have their advantages and disadvantages but a number of factors like lifestyle, comfort and age etc. are important while deciding which one to choose. Here is a list of the fundamental differences between using spectacles and using contact lenses:

1. Distance from the cornea
Lenses are worn directly on the eye and are in constant physical contact with the cornea while glasses are worn over the eyes. Contact lenses may cause infections in the eye because the user has to touch the eye in order to wear them and to take them off.

2. Difference in vision
Since the lenses of spectacles are a little distance away from the eye, vision can be slightly distorted but contact lenses can provide natural and accurate vision. Also, side vision is not improved by glasses as you have to turn your head to see what is beside you. The contacts move around with your eyeballs and the peripheral vision is in focus.

3. Ease of use
Some people find eyeglasses difficult to use because of the constant weight on the face and the obstruction caused by the frames of the glasses. There may also be a constant need to adjust the frames. Often eyeglasses slip down the nose when you sweat or engage in rigorous physical activity. Contact lenses are free from all these hassles - they are not distracting or obstructive and so they are extensively used by dancers and athletes. Spectacles is very uncomfortable to wear during the rains or in humid weather because they fog up.

4. Infections and complications
Contact lenses can get displaced inside the eye and they can be difficult to reposition. They also cause the eyes to itch and water if you wear them for a very long time at a stretch or if tiny dust particles enter your eyes. The use of eyeglasses is far more flexible in this respect - they can be removed in case your eye itches or burns, but regular use of glasses causes dark circles and bags under the eyes.

5. Aesthetic differences
People often prefer contact lenses as they do not change the physical appearance - they help you look natural and you can also use colored lenses to change the color of your eyes. Glasses may look slightly unnatural but some people also prefer them for the fashion quotient.

Lens Vs Specs

During summer you try to take special care about the overall health of your body, particularly, your eyes. Eyes are one of the most important organs of the body, and the scorching summer heat can cause serious eye problems like conjunctivitis, infections, red eye, migraines etc., which is why it's important to take proper care of eyes during the summer season.

Here are some tips to keep your eyes cool and protected during the summer:

- Wearing sunglasses is very important when you are outdoors as it protects your eyes from the harmful UVA and UVB light. This will help in avoiding migraines and even serious conditions like cataract.
- Avoid midday sunshine. Stay indoors as much as possible during the middle of the day to avoid the sunshine then when the effect of the sun and ultraviolet radiation exposure are at their peak.
- When you plan to go for a swim, make sure you wear your swimming goggles. Otherwise you might catch conjunctivitis.
- You should not splash water into the eyes directly unless any foreign particles such as dust enter your eyes. This might damage the tear film of the eye, which protects your eyes.
- You need to maintain proper hygiene by washing your hands and face properly as soon as you reach home so that dust or grime does not enter the eyes as their entry can result in allergies and infections.
- You can keep a slice of cucumber on each of your eyes to relax and cool them down.
- 6 to 8 hours of sleep are a must as they help in revitalizing your eyes.
- Adding green vegetables, carrots, nuts, liver and fruits to your diet would be very beneficial for the health of your eyes.



8 Tips to Keep Your Eyes Cool in Summers

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?

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.

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

What crying does to your body

Do you know that every little activity that you perform on a daily basis impacts your body? what you eat, how long you sleep and even every tear you shed affects your body. Most people are aware of how their body reacts to major activities, like exercising, but few are aware of how the body reacts when they cry.

While you are generally concerned with the mental cause and effect of crying, have you thought about what crying does to you physically? tears are not always shed when a person is upset. Tears are a body's way of expressing itself as well as protecting itself. Everything from a happy ending in a movie to a dust particle in the eye can make you tear up.

There are essentially three kinds of tears. Basal tears and reflective tears help keep the eyes lubricated and irritant free respectively. It is the psych tears, which we commonly refer to as crying, that come as emotional responses.

Crying might be a sign of emotional stress and pain but if you are wondering how it harms your body, the answer is that it does not. Crying does not harm one's body physically. In fact it does better than harm to your body, purely physically speaking. Here's how-

- when you cry, your tears help your eyes remain clear.

- it also has anti-bacterial properties that keep your eyes clean.

- your eyes remain properly hydrated thus reducing any kind of irritation. You might feel dehydrated after a while due to the loss of water and salt.

- even the excess manganese in your body gets washed out through tears.

But for some, the act of crying can cause medical complications. It can lead to fits or can cause an acute shortness of breath. For those with severe heart conditions, there can be a cardiac pain. Crying can take a toll on your body if you have certain medical conditions. For most people crying does more good for their body than harm.

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Related Tip: Why India Has POOREST Eyesight? + 4 Tips for Improving Your Eyesight

What Does Crying Do to Your Body | Good & Bad Effects

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