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78 votes
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How can I protect my eyesight when using computers?

20-20-20 Rule Every 20 minutes of looking at the screen, look at something 20 feet away for 20 seconds. Also, try to blink a lot. Adjusting settings Using a larger font to read helps to reduce eye ...
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  • 7,717
25 votes

How can I protect my eyesight when using computers?

There are some options you have to reduce eye strain. You can get an anti glare cover for your monitor You can also adjust lighting of your work area (not always possible) by lowering internal ...
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  • 571
22 votes

How can I protect my eyesight when using computers?

The primary risk is what is called Computer Vision Syndrome (ref, ref, ref). The American Optometric Association (referenced above) recommends the following changes in viewing habits to alleviate ...
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  • 651
16 votes

Is Low Blue Light helpful for preserving eyesight?

There are two mechanisms of action how light affect humans discussed here: Amount of energy: shorter (blue) wavelengths are more energetic than lower (red), so it can be assumed that they damage ...
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  • 375
14 votes

How can I protect my eyesight when using computers?

You can also use f.lux, it is a software that adjusts automatically and according to your location the brightness and contrast of your monitor. It lowers UV light during day, and lowers IR light ...
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  • 159
14 votes
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Do carrots actually improve eyesight?

This is debunked with little reference on Snopes. It is claimed there that the origin of the myth was deliberate misinformation to hide the use of a game-changing technology used by the RAF to shoot ...
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  • 746
11 votes
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What needs to be exposed for the body to produce Vitamin D?

Vitamin D is produced in the skin, not the eyes.(1) I would imagine that when those indigenous peoples were introduced to sunglasses, they were also introduced to a number of other items they had ...
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  • 9,314
10 votes

How does LASIK (laser eye surgery) work?

LASIK is an acronym for Laser-Assisted in situ Keratomileusis, with Keratomileusis meaning surgical improvement of the cornea's refractive capabilities, i.e. usually to overcome the defects of myopia (...
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  • 1,513
8 votes

Will eye floaters ever disappear?

In general any cellular material within the vitreous may cause eye floaters, for example red blood cells as a result of hemorrhage and white blood cells as a result of infection or inflammation. So ...
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  • 4,697
8 votes
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Are computers bad for health?

Like all things too much of anything is bad for you. As a designer working in the tech industry for over a decade, here's a few things I experienced and that might (I hope not) impact you. wrists ...
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8 votes

Are there behavioral causes for myopia?

I think there's a link, but no one can say that this is the cause of myopia According to American Optometric Association : The exact cause of nearsightedness is unknown, but two factors may be ...
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  • 787
7 votes
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What are the different eyesight measures and how are they related to each other?

First of all, one has to distinguish between visual acuity (VA), which is a measure for the maximal possible resolution your eye-brain-system can achieve, and the refractive error, which measures the ...
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  • 781
7 votes

Do carrots actually improve eyesight?

This page on WebMd has an interesting section entitled "Myths About Your Eyes and Vision." The relevant portion: Eating Carrots Will Improve Your Vision Fact: Carrots are high in vitamin A, ...
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6 votes

How can I protect my eyesight when using computers?

The Vision Council, which represents the manufacturers and suppliers of the optical industry, suggests the following tips to prevent and lessen digital eye strain: Adjust the brightness of your ...
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  • 4,697
6 votes

How can I protect my eyesight when using computers?

The health of your eyesight when using computer it really depends what kind of screen you're using and many other factors (DNA, diet, etc.), but in general, modern monitors (such as LCD, LED-backlit, ...
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  • 4,697
6 votes
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What does eye power -6 means and how close to blindness is it?

Your units of measure are likely "diopters." If someone needs glasses for reading (because the person is far sighted), then they would be given an prescription with a +[digit], and note that each eye ...
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  • 76
6 votes

What causes the cornea to change shape in astigmatism?

The specific cause of astigmatism is unknown. It can be hereditary and is usually present from birth. It can decrease or increase over time. - American Optometric Association You might've had it ...
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  • 828
5 votes
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Outcomes and risks of LASIK surgery

Post-operative complications include the following: Visually significant wrinkles or striae in the flap (1%) Dislocated flap (early postoperative period) Infection (early postoperative period; very ...
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5 votes
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How can doctors remove a stye without damaging the eyeball?

What is a stye? A stye is an infection of the sebaceous glands at the base of the eyelashes or the apocrine sweat glands on the margin of the eyelid. Styes are caused by the gland becoming blocked by ...
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5 votes
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What causes optical floaters to be more or less visible?

[S]ometimes they become more prominent again, usually for a few minutes at a time. Is this a difference in perception (something is causing me to notice them more) or a difference in placement (they'...
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5 votes
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Can crossing my eyes damage them?

It is actually a pretty common myth that crossing your eyes too much or for too long will make them get stuck that way. Crossing your eyes does look very similar to strabismus which is an actual ...
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  • 7,717
5 votes

Is Myopia Reversible/Curable?

Myopia, or nearsightedness, occurs when the eye grows too long from front to back. According to the American Optometric Association, Myopia occurs if the eyeball is too long or the cornea (the ...
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  • 958
5 votes
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How to reduce the side effects of wearing contact lens?

Questions 1-2 Unfortunately, the answer to these depend on the exact brand and line of contacts used. For example, here is a long list of silicon hydrogel lenses, and how long they last. Here is ...
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4 votes

Are there behavioral causes for myopia?

I think the best known environmental risk factor (to date) for myopia is lack of intense/outdoor light exposure. The pathway for this is reasonably well understood, namely: lack of intense light ...
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  • 5,773
4 votes

What do bags under the eyes mean, and what causes them?

To the best of our knowledge, it just happens to some people and it's harmless. With aging, the tissues around your eyes, including some of the muscles supporting your eyelids, weaken. Normal fat ...
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  • 6,998
4 votes
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Astigmatism eyeglass lenses -- how much distortion is normal?

According to my eye doctor, this much distortion is not normal. He checked the strength of my glasses and they were not made according to the prescription: the OS astigmatism correction was -0.50 ...
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  • 321
4 votes

What does eye power -6 means and how close to blindness is it?

I am going to assume with - 6 you mean a measurement of - 6 Dioptre . If you are talking about the strength of the glasses he needs, the minus indicates that this eye is nearsighted, a positive value ...
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  • 6,998
4 votes

Is it ok to not wash a contact lens?

Much like you probably won't catch a cold every time someone sneezes on you, you also most likely won't get an eye infection every time you neglect contact lens hygiene. We all did it at some point, I'...
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