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Doctor insights on: Why Are Eyes So Vulnerable To Damage

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Why are eyes so vulnerable to damage?

Why are eyes so vulnerable to damage?

Ultraviolet Light: Uv light cause damages to cells. The melanin containing cells in the skin provide some protection for the body but the cornea of the eye is clear and allows the uv light to penetrate. This can cause damage to the lens of the eye resulting in cataracts. ...Read more

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Can sunglasses be bad for my eyes? Is it better to have darker-colored lenses or higher uv protection (or both)? I heard that darker sunglasses cause the pupil to dilate more, which makes your eyes more vulnerable to uv rays. Is this true? Should i get li

Ultraviolet : Ultraviolet (uv) light is harmful to the eyes, especially large amounts over long periods of time. In the United States, all sunglasses are required to block a very large percentage of the uv rays. The darkness of the sunglasses does not affect the uv filtering ability, since uv light is invisible and the uv blockers are clear. It is true that darker the sunglasses will open the pupil more and thus let in more uv light, but since almost all of it is being filtered by the sunglasses, this is not something to worry about. The exception would be specific eye diseases such as retinitis pigmentosa, in which extra high uv protection is a good idea. ...Read more

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Can onions permanently damage your eyes?

Can onions permanently damage your eyes?

No: There has not been any case report of permanent eye enjory due to exposure to onion. ...Read more

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I tend to rub my eyes a lot. Does rubbing damage your eyes?

I tend to rub my eyes a lot. Does rubbing damage your eyes?

Yes: Constant eye rubbing can be damaging to the eye. In themost extreme cases this can cause thinning of the cornea. If you are rubbing your eyes due to allergies, it is best to see an eyecare provider to treat this condition. ...Read more

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How bad is it to keep wearing old contacts? What damage does it do to your eyes?

How bad is it to keep wearing old contacts? What damage does it do to your eyes?

Keep on schedule: Contacts are designed to last for certain intervals of time which will be told to you by the ophthalmologist who fit them for you. This relates to the time to accumulate substances which will affect clarity, change comfort or culture organisms. There is some flexibiity beyond manufacturer recommendations related to environment and your tear cleaning ability. Best to keep on schedule. ...Read more

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Reading in darkness with a mini flashlight can it damage your eyes?

Reading in darkness with a mini flashlight can it damage your eyes?

Strain but no harm: Contrary to popular belief, reading in dim light does not do any long-term damage to the eye itself or weaken the eyesight. For the short-term, however, it can cause some eyestrain, which is just fatigue in the muscles of the eyes. If your eyes feel sore or your vision is less crisp than usual, it is time to close your eyes and rest them (and maybe dream about that great novel you're reading!). ...Read more

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How easily can a bright led flashlight damage your eyes?

Not very: Led lights can be dazzling but are not laser. They do not provide a concentrated, focal light but a more diffuse light which the eye can easily handle. It is not comfortable to stare at an led light but not harmful. This of course is not the case with laser light which carries the usual cautions. ...Read more

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Is it true that reading in dim light can damage your eyes?

No: This is an old wive's tale. Although it is certainly best to read in a clearly-lit setting, reading in dim light will not hurt your eyes. ...Read more

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Can wearing expired contacts damage my eyes?

Yes: The expiredcontacts may be fine but they may cause problems if they are damaged or if the storage fluid is contaminated. ...Read more

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Could you damage your eyes by watching too much tv or videogames?

Could you damage your eyes by watching too much tv or videogames?

No.: No. This is an old wife's tale. Watching tv and playing video games does not damage vision. ...Read more