Everything you need to know for having a healthy eye!

Everything you need to know about a healthy eye

Living in the 20th century, the era of technologies and screens, we are paying a hefty price; our health. We all know very well how the people of our generation, including us, are getting blinded by this toxic work culture, leaving their health behind. Being ambitious is a great quality to have but so is maintaining good health. Neglecting your well being for the sake of work/duty is never an option.

After all, what would you do with all your hard earned money when you, yourself won’t be there to spend it?

Though, our whole body is suffering in some way or the other because of our poor lifestyle, but the part about which we are going to discuss today is the eyes.

First we need to understand the structure and the functioning of the eyes in order to understand the ways to keep it healthy.

Importance of having healthy eyes

Eyes are the portals for our brain that enables us to see the colourful world. You’ll be amazed to know that eyes are the second most complex part of our body, after the brain. A normal human eye:

  • Has a visual acuity of 20/20. It simply means, with a normal vision one can clearly see objects at a distance of 20 feet.
  • Has a resolution of 576 megapixels, which provides us a clear and high contrasting  view.
  • Can see till infinite, in absence of any obstruction (though, that depends on many other factors as well).

Structure of a human eye

An adult human eye is nearly spherical in structure. The walls of the eyes are composed of three layers, namely:

  • Sclera, the outermost layer which forms the anterior part of an eye, cornea.
  • Choroid, the middle layer. It forms the Iris, the visible coloured portion of eye and ciliary body on the anterior portion,which holds the lens of the eye in place.
  • Retina, the innermost light sensitive layer, where the image is formed, contains the photoreceptor cells, bipolar cells, amacrine cells and ganglion cells.
Structure of eye-how eyes work

Other important parts of an eye include blind spot and fovea. Blind spot is the region from where the optic nerve leaves the eye and retinal blood vessels enter it. This region lacks the photoreceptor cells and hence, no image is formed there.

A yellowish pigmented spot called macula lutea, has a central pit called the fovea. Fovea is a thinned out portion of the retina, wherethe visual acuity is the greatest.

Working of the eyes

First of all the light enters the eye through the outermost clear layer called cornea. It is a curved surface which bends the light to help the eye focus. Iris has an important role in vision instead of just making our eyes look beautiful. It controls the amount of light entering the eye by making changes in the aperture of the pupil.

After entering the eye, light falls on the transparent crystalline lenses, whose curvature is adjusted according to the distance of the object from the eye with the help of the ciliary muscles.

Cornea and lens work together to focus the light correctly on the retina.

The convex lens forms a real and inverted image on the retina.

The photoreceptor cells (rods and cones) then convert the image formed into electrical signals and pass it to a series of cells in the retina. Finally the electric impulses are sent to the visual cortex of the brain with the help of the optic nerve.

Need for concern

Approximately 6.8% of children younger than 18 years in the United States have a  diagnosed eye and vision condition. About 9.3 million children in India are visually impaired. In fact, according to an article by the National Eye Institute, visual impairment and blindness cases in the U.S. are expected to double by the year 2050. Visual impairment like myopia (nearsightedness) and hypermetropia (farsightedness) is increasing at an alarming rate in people these days, especially in kids.

Reasons for poor eye health

Increased screen exposure

Increased screen time is a major cause behind these eye defects. People are obsessed with their mobile phones these days. The mindless scrolling that we keep doing these days just for fun is charging us a hefty price by degrading our vision.

Air pollution

Other than longer exposure to screens, pollution is another serious cause of many eye related issues such as redness, swelling, blurred vision, and diseases like conjunctivitis, cataract, glaucoma. Some diseases are even irreversible.

Cataract and glaucoma are a major cause of vision loss and blindness in older people.

Prolonged UV radiation

Prolonged exposure to UV rays causes modification in the lens proteins, and leads to cataract formation and worsened eyesight. Cancers of the eyelid, including basal cell carcinoma and squamous cell carcinoma, are other diseases linked to UV exposure.

Reason that could affect eye health

How to improve and maintain eye health

There are many ways by which one can improve their eye health and maintain proper vision at home. Though it’s not possible to correct an impaired vision without professional help.

Following are few ways for the same:

Proper diet

Having a proper nutrient enriched diet is very important to maintain proper functioning of your eyes. Every nutrient works on different parts of the eyes and has a different role.

  1. Vitamins A, C, and E, as well as the mineral zinc, contain antioxidants and help prevent macular degeneration. It’s a condition in which the macula deteriorates. These nutrients are found in vegetables and fruits such as carrots, red peppers, broccoli, spinach, strawberries, sweet potato, citrus etc.
  2. Evidence suggests that diets rich in omega 3 essential fatty acids may have ocular benefits. Salmon fish is a major source of omega 3 fatty acid. Flaxseed and chia seeds are the  plant based sources of the same.
  3. Lutein and zeaxanthin, the carotenoids found in the retina, helps protect the macula by improving pigment density in that part of the eye, and absorbing ultraviolet and blue light. These are found in leafy green vegetables, broccoli, zucchini, and eggs.

Yoga exercises for eyes

Yoga provides a series of exercises that improve the functioning of the eyes and helps to overcome various eye related problems such as myopia and hypermetropia. Mentioned below are a few simple exercises to improve eyesight.

  1. Palming: Sit quietly with eyes closed. Rub the palms of your hands vigorously until they become warm. Now place your warm palms over your eyes. The warmth transferred from your palm to your eyes will help the eye muscles relax.
  2. Blinking: while sitting comfortably with your eyes open, Blinking 10 times very quickly. Close your eyes for 20 seconds and focus on your breath. It’ll help to keep your eyes moist.
  3. Rotational viewing: sit with legs straight in front of your body. Place your left hand on the left knee and hold the right fist above the right knee with thumb pointing upwards. Keeping the head still, focus your eyes on the thumb and make a circle with the thumb while keeping the elbow straight. Repeat this exercise five times each in a clockwise and anti-clockwise direction. Repeat the process with your left thumb as well.

Other such exercises are up and down viewing, preliminary nose tip gazing, near and distant viewing, front and sideways viewing answers sideways viewing. You can easily find these on the web and follow regularly for a healthy eyesight.

Wearing protective eye wears

We participate in a variety of activities in our everyday lives that affect our eyes such as reading in dim light, swimming, staying in direct sunlight, scrolling a smartphone, staring at computer screens for long hours, working in a science lab, or dusting your house. Our eyes are a very sensitive part of our body that requires proper care. A range of protective eyewears are available these days in the market such as:

  • Study glasses with blue cut and uv protection.
  • Swimming goggles to prevent chemicals from the pool entering your eyes.
  • No cry safety glasses.
  • Polarised sunglasses for better protection.
  • Sports sunglasses etc.

Overall body fitness

Our body works as a whole. Every body organ is connected to the other organs and affects their functioning. Similarly the overall fitness of our body affects our eye health as well. Some of the diseases/conditions that affect our eyes are type 2 diabetes, high blood pressure and multiple sclerosis.

Type 2 diabetes, more common in overweight people, causes damage to the tiny blood vessels in the eyes. This condition is called diabetic retinopathy. Too much sugar circulating in the bloodstream injures the delicate walls of the arteries and causes them  to leak blood and fluid into the eye, harming the vision.

Diabetes also doubles the chances of having glaucoma which can lead to vision loss and blindness if not treated early.

Hence, keeping a check on blood sugar levels and staying fit can prevent diabetic retinopathy.

High blood pressure can lead to stroke which can also cause vision loss or damage the area of the brain responsible for processing images. High blood pressure also causes chronic inflammation and inflammation of the optic nerve, can cause pain and even complete vision loss.

Though, high blood pressure can be effectively treated with a heart-healthy diet, exercise and antihypertensive medications.

Roper rest to the eyes

Our eyes work throughout the day and get strained, which is not good for our eye health. To prevent straining of eyes you can follow the 20-20-20 rule.

That means every 20 minutes, you should stop staring at your computer and look at something 20 feet away for 20 seconds.


These are a few ways to maintain the overall health of your eyes and improve your eyesight to some extent.

Making these tiny changes in your lifestyle will work wonders for your eyes and will provide you with better eyesight. These will take longer to act as there’s nothing like a quick and easy solution.

Though, these things won’t work if you have a serious eye issue such as cataract, conjunctivitis or xerophthalmia.

Sometimes visual impairments are a result of the defect in the shape of the eyeball and in that case you must consult a doctor.

Important links

Visual impairment blindness cases in US: https://www.nei.nih.gov/about/news-and-events/news/visual-impairment-blindness-cases-us-expected-double-2050

Effect of UV radiation:


Importance of omega 3 fatty acids:


Yoga exercises for eyes:


Effect of Diabetes: https://www.niddk.nih.gov/health-information/diabetes/overview/preventing-problems/diabetic-eye-disease#:~:text=Diabetes%20can%20lead%20to%20swelling,other%20signs%20of%20diabetic%20retinopathy.

Effect of hypertension:


This blog post is written by extremely talented Anjali. This was her first health blog, so I would appreciate it if you guys can show her some support.

If you like her work, which I am sure you did, you can follow her by clicking here.

If you want to read more of the guest blogs that are featured on FGW please click here

Tap on FGW to read more from me.

That’s it for now…. Take care of your eyes and don’t forget to smile.

88 responses to “Everything you need to know for having a healthy eye!”

  1. It was a great time working on this blog post. Thank you so much for giving me this opportunity to write a health blog for you 😊.

  2. Hi Anjali,

    First of all, welcome back! I thought this blog post is written by Devang, and had no idea that you have written this until I saw the author name ‘Anjali’ at the end.

    “Our eyes” are the greatest gift we recieved from the natural system of this world.
    I can’t imagine, living a single moment, without having ‘the visual ability’.
    ‘I want to see’ and I like the variety of colours.

    With highlighting the importance of having healthy eyes, you have explained the structure and functioning of the eyes ‘through a picture’.
    Believe me reading this blog post is the easiest way anyone can understand their eyes.

    There are several reasons of “unhealthy eyes” or poor visual ability; and I’m one of those victims.

    I got the lenses (my chashma) at the end of 11th standard. Because of my habit of staying awake late in the nighttime, and “watching TV” for hours since the childhood.

    Once ‘Fevi Kwik’ entered in my left eye, accidentally — when I was trying to open the packet, to use.
    Thankfully, my friends were their as per their careful suggestions, I was able to not lose my eyesight completely.

    But it caused some damage. And my left eye has a higher number compares to the right eye (the numbers are between 1 to 1.5).
    I have Hypermetropia or “Farsightedness” issue.

    I wished if I could get rid of these lenses. But it seems I have to live with them.
    That doesn’t mean I completely neglect my eyes health.

    You have mentioned some essential nutrients required for good eye health and I have already included them in my diet.

    But I need to be strictly follow “the screentime rules”.
    Spending long time using the smartphone has other outcomes also.
    For example, Mental instability, depression, and irregular dopamine release etc.


    Enough awareness is needed to maintain good eye health.
    We need to take responsibility of our body and mind, in order to sustain.

    Healthy food, in addition to regular exercise, would be helpful.👀

    Thank you Anjali for sharing this blog post.
    I’m sure it must have taken full focus, lots of efforts, and patience.
    Take care of yourself.

    I also appreciate, the FGW ‘initiative’ to collaborate with the bloggers of similar interests, those need to be introduced with a larger audience.

    Well done. Amazing work!👏👏
    Best wishes.✨✨

    • I’m glad you understood the structure and

      functioning of the eyes with ease. I’m a victim of poor visual ability as well, a chashmish since 7th standard, and the reason is watching TV, LOL!

      Oops! The fevi kwick incident seems quite painful, but you don’t have to live with glasses your whole life. You can go for a lasik surgery.

      Yes, it required a lot of research work and patience.

      Thank you so much for such a lovely comment and for sharing your views.😊✨️

  3. a wonderful post, Anjali. 🤍
    not many of us realise the importance of eye health. a much enjoyed read.

    Thanks, Devang🤍

  4. A great post, Anjali

    I know this struggle of having weak eyes, as i got my lenses at the age of 10.
    Excessive screen time is something i can’t help, everything else is fine😅

  5. Great post, Anjali!
    Taking care of our eyes is definitely very important especially for those who spend hours in front of digital screen. I’m one of them and I guess I need to get study glasses asap.
    I do yoga though 🙂

    • Thank you so much, Poorwa!!

      You must!!! Study glasses are a great option to prevent your vision from getting deteriorated.
      That’s great to know. Yoga helps a lot.

  6. Hello Ajali, and Devang, brilliant post with so much detail. There are so many ways we can look after our eyes that we don’t tend to think about. I know that eye health deteriorates as we age and dry eyes can become a problem – that combined with screen time etc – really make the matter worse. I’m pleased to read some of your suggestions – particularly the yoga exercises. I’m going to give them a go.

    Great post, which works well with FGW blog – well done both of you 🙂

  7. This post is a comprehensive guide to understand everything about taking care of our eyes. It’s true that prolonged screentime is the biggest risk to our eyes and as we are becoming dependent on technology, we are losing the value of work done by our hands and legs.
    Gardening, cooking, exercise, dancing, cleaning home, walking are some activities that I try to do regularly to reduce screentime.
    Great post, Anjali. Thanks for sharing this valuable post with us, DU.

    • Thank you so much for appreciating and adding your valuable input!

      Readucing screen time is really a huge task these days, and it’s great to know that you’re making efforts to do the same.

  8. Wow, this was so comprehensive D! Great job on the images, information and breakdown of everything. Screen time is the kiss of death and we all are on their way too much.
    My dad and grandma had macular degeneration and glaucoma and he is near legally blind.
    I go to great lengths to protect mine.
    Recently I got info from a head Doc at Stanford saying the blue ray protection glasses don’t work and are all just a selling scam but I hear people benefit so I think everyone is different.
    Superb post, thank you👏💗🙏🏼

    • This blog post is not written by me

      Neither the images are made by me.

      But I appreciate your time and energy for this blog post.

      Take good care of eyes
      Now is the perfect time to keep them healthy, so that can you have beautiful vision in future.

  9. Well written! Good work. I’d like to add that it is very important to protect our eyes when doing home repairs or carpentry. After 25 years of age, have your eyesight checked, your eyes may have changed. That is when I began to wear reading glasses.

    • Hmmm true!!
      Whenever we are doing some work, it’s good to wear protective glasses!!

      Regular eye test, dental test, general check-ups are must.

      Thanks for reading and commenting

  10. Some fantastic advice and I can’t wait to try the yoga exercises! I have been nearsighted my whole life, and have worn contacts since 7 years old. Taking care of my eyes is pretty critical for me….for without my lenses everything is a blur. I’ve tried the blue light glasses and filters for my screen, but they make my eyes ache and give me a constant headache. Any tips/tricks/advice for dealing with that?

  11. I feel so bad for my poor eyesight – it was deteriorated from pandemic time. Being a teacher, having to take the classes online, doing multiple things sitting in front of the laptop, and checking students work, giving feedbacks, doing endless zoom meetings- all these made my poor eye sight worsen …
    Anyways, I hate to wear glasses but I have to for the rest of my life.

    Reading this article makes me realise a lot of things… and
    I thank God that I love having carrots, broccoli, spinach, strawberries, sweet potato.
    I also love flaxseed and chia seeds
    I don’t like Salmon fish, but other fish 🐟 🐠
    Great I like leafy green vegetables, broccoli, zucchini, and eggs also …

    I liked the exercises mentioned here and literally did those,
    Palming, Blinking and Rotational viewing …
    And up and down viewing, preliminary nose tip gazing, near and distant viewing, front and sideways viewing
    Rotational viewing seemed a bit tough…
    Didn’t like it ..

    I use all-time glasses
    While swimming I use swimming goggles
    I use sunglasses adjusted to my eye power …
    Lastly I must say that I like this 20-20-20 rule

    Thank you dear Anjali for this wonderful article on such an important organ of our body.

    Thanks once again.

    Lastly, thanks to Devang for sharing such a great article. You’re always so kind.

    God bless you all

    • Well yes
      Pandemic infact effected eyes.
      I got glasses around that time, as there were too much phone viewing.

      You can also try cold compress, such a great relief 😌

      Wah, I didn’t know you are a teacher.
      Yet again another teacher in my following,haha.
      What are all the teachers doing here 😝

      Thanks for your support RA

      • Cold compress is helpful for me.
        Thank you Devang.

        I had a bad experience during my covid. While I was recovering, I quit the full time job. Now I do join in volunteer programs for teaching and creating engaging classrooms with children in various schools.

        Meanwhile I do have my painting journey and I love that.

        And in WP, I love writing and connecting with you all – that’s why I’m here ☺️

        I appreciate your support as well and I’m grateful for that. Thank you so much Devang.

        Take care and never forget to smileeee like you always say 🤲😊♥️

  12. Increased screen time seems to be main reason for eye problems these days, but yoga exercises suggested by you are quite effective.

  13. I am currently trying to get an eye problem I have diagnosed. Your eye yoga tips were very useful for me to know. To be honest, I think it might’ve come from looking at my laptop too much but we will see, I’m going to find out soon.

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