Does watching a lot of TV hurt your eyes? 10 misconceptions about vision

Does watching a lot of TV hurt your eyes? 10 misconceptions about vision

Dec 18, 2024Ehotyshamull Joy

 

According to a recent study by King's College London, the frequency of outdoor activities during childhood has a major impact on visionThe longer the time spent in the sun during eye growth, the less likely they were to develop myopiaOther environmental factors, such as watching TV and monitors, which we are familiar with, did not have much to do with it.

As you can see, there are a lot of misconceptions we have about vision. What are some of them?
1. Does the habit of squinting make myopia worse?
No. Myopia occurs and progresses in growing adolescents due to the formation of a focal point in front of the retina. Squinting may cause wrinkles around the eyes, but squinting does not increase the length of the eyeballs, so myopia will not worsen.
2. Does reading a book or a computer up close or in close proximity make myopia worse?
If you look at a nearby object such as a book or computer for a long time, the muscles in the eye (ciliary muscles) continue to contract, causing a temporary increase in the refractive index of the lens, which can lead to temporary myopia. But this is a ciliary body as soon as you stop looking at the near distance and look into the distance, or close your eyes for a while and rest.The muscles relax and the thickness of the lens is restored, so it does not cause myopia permanently.
3. If you get into the habit of not wearing glasses, will your vision be restored, and if you start wearing glasses, your vision will adjust to the prescription and it will get worse?
The reason why glasses are worn is because the refractive index of the eye is not normal, so they are worn with glasses to adjust the refractive index. The refractive index of the eye is determined by the protrusion and shape of the cornea and the length of the eyeball . This is also a myth because the presence and duration of wearing glasses does not affect the shape of the cornea and the length of the eyeball. In the case of adolescents in Korea, the frequency of myopia is high, and myopia progresses during the growth period, so the prescription of glasses is periodically You have to upload it so that there is no problem in taking classes.
4. Does wearing glasses for a long time change the shape of your eyes?
Wearing glasses for a long time does not affect the shape of the eyeball. However, the shape of the eyelid may be slightly deformed, such as the eyelids drooping if the frames are heavy or if the skin of the nose is pressed too much.
5. Does eating a lot of carrots or liver improve eyesight?

Most don't . Carrots and liver are a lot of vitamin A, which is important for the eyes, but if you're not a picky eater, you can get all the vitamins you need for your eyes in the foods you eat.

 

6. Does reading a book in the dark worsen your eyesight?

It just strains your eyes , but it doesn't make your vision deteriorate or your eyes function worse.

 

7. Does reading in a rocking car hurt your eyes?

In order to achieve shaky focus, the muscles inside the eye and the muscles of the outer eye contract excessively, which can lead to stable fatigue and even vomiting . This does not mean that your eyesight will deteriorate.

 

8. Do vision correction exercises really work?

There are rare occasions when you need to exercise your eyes. For example, if the muscles that move the eyeball are paralyzed, it is helpful to exercise in the direction of contracting the paralyzed muscles to strengthen the muscles . Or, if you have strabismus, exercising your muscles in the opposite direction of your strabismus can also help you recover from strabismus. Note. However, eye exercises cannot restore vision. Vision is determined by the cornea, lens, optic nerve, and retina, and eye movement does not affect these tissues .Because.

 

9. Do darker lenses block UV rays more effectively?

The UV protection is not done by the color of the glasses, but by UV protection reagent treatment. Therefore, even if you wear dark black glasses, if you do not have UV protection , UV rays will still transmit. Even colorless and transparent glasses are 100% UV protection if they are well treated.

 

 

10. Do ophthalmologists not do LASIK because LASIK makes your eyesight worse?

LASIK doesn't make your vision worse, and it doesn't get better. LASIK, however, allows you to see with the naked eye without glasses or contact lenses . It's a thing. Of course, if you have a very rare side effect after LASIK (corneal protrusion, negative astigmatism, etc.), your vision will be It's going to get worse.


In general, surgery to cut the cornea with a laser, such as LASIK or LASEK, technically has a slight decrease in resolution after surgery. This is especially true for those with large pupilsTherefore, the ability to distinguish very small things after LASIK may be less than before, which is something that is not well felt by most people who go about their daily lives, so there are quite a few ophthalmologists who do LASIK.

 

Why does my eyesight deteriorate, and what can I do to improve it?

1) Reasons for poor eyesight

Growing adolescents' vision deteriorates because their eyes are getting longer and taller and the focus is on the retinaTherefore, as long as you grow taller, myopia progression may be something that is difficult to avoidHoweverI have seen some students grow taller but not have myopiaIt's like being tall but not having the same face size.

 

2) How to improve your eyesight

There aren't many ways to improve your eyesight. However, in the case of farsightedness in childhood, the length of the eyeball increases as the child grows, and the eye tends to be nearsighted, so farsightedness often improves. In the case of nearsightedness, there is no way to make it better, and there are precautions to prevent it from getting worse.

 

It is not recommended to sleep on your stomach when sleeping. Menstruation, when you sleep at nightyour eye pressure increases.If your eyeballs are pressed against the pillow, especially when you sleep on your stomach, your eye pressure can rise to almost twice the intraocular pressure during daylight hoursGrowing children have more flexible eye walls than adults, so if the eye pressure rises a lot, the length of the eye can also increase. If the eyeball lengthens the eyeball, it is the progression of myopiaTherefore, the habit of sleeping on your stomach is not good for adults because of glaucoma, and it is not good for adolescents for the progression of myopia as well as the optic nerve.



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