Doctor insights on:
Is It True That Reading In Dim Light Can Damage Your Eyes
Not at all: Neither is there truth to the myth that reading in the dark or sitting too closee to the television will damage your eyes. The eyes are essentially solid-state video cameras, and cannot be damaged by dim light, uncomfortable reading distance or anything short of trauma. Of course, reading with good lighting is more comfortable and enjoyable! ...Read moreSee 1 more doctor answer
Is there any truth that reading or watching tv in dim lights will cause the eyesight to deteriorate?
Total myth: If you can accomplish a visual task in dimmer light, that will not harm the eyes in any way. If the dimmer light makes you more comfortable than go ahead and use it. Abraham Lincoln was said to have read by the dim light of a fire which seemed to cause him no eye or brain damage. ...Read more
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 moreSee 1 more doctor answer
My teacher told me that all myopia is genetic. Is it? Does playing computer or reading in short distance affect the refraction of light to our eyes?tq
Genetic + more: Genes definitely play a big part in determining who will become myopic. However, we have found that there are many environmental factors, as well. Recent research has found that people who spend more time indoors growing up VS outdoors tend to develop more myopia. Playing on computers is unlikely to affect a person's ultimate refraction, but reading at a too-short distance may affect it. ...Read more
Dear doctors, what will happen to our eyes,when we forcibly stare at a bright source of light? Does it cause any damage to the eye?
Usually nothing: Most light sources (except the sun and lasers) are not sufficiently intense to do any damage. You of course will find staring at bright light to be uncomfortable, but your pupils will get automatically smaller and the retina involuntarily moves in little rapid motions which minimize the intensity for any one point. ...Read more
I have too much pressure in the eye and is it true glaucoma stems from pigment dispersion syndrome?
Possibly: In pigment dispersion, the loose pigment scraped by your eye off the back of the iris, can clog the fluid outflow passageways and elevate the pressure above the ability of the eye to withstand it. This is the basic definition of glaucoma. Treatment in these cases is given to lower the pressure until all the pigment is gone and the pressure can normalize. ...Read more
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 moreSee 1 more doctor answer
Does reading in dim light cause myopia? My daughter is nearsighted and needs glasses. I’m wondering whether her myopia was caused by reading in low light and watching too much tv. Is this possible?
No: This is a common misconception. Wearing glasses to correct refractive error does not make your vision worse or increase your refractive error over time. Refractive error is an imbalance between the length of your eye and it's optical power. Glasses simply compensate for that imbalance. ...Read more
I have brain injury that leads to blurry vision, is this something that optical glasses will be apple to fix?
Is it true that often playing smartphone in the room with no lights at all has bad effects for your eyes? Such as blind maybe?
Not harmful: It is commonly easier to read these devices in rooms with dim illumination. No harm will be done by this practice. Blindness has never been a consequence of this. ...Read more
NLP: It means that the visual acuity is listed as NLP, which means no light perception. The patient sees only blackness, even when a bright light is shone directly into the eye. The problem may be at any point in the visual pathway. One of the most common causes in the US is glaucoma wherein the optic nerve has completely withered away and will not transmit the visual signal from the eye to the brain. ...Read more
I'm getting laser iridotomy soon in both eyes.
Is it true that positioning the hole at 3 or 9 o'clock is better to avoid light aberrations?
Is it true that lasik is imprecise? I read on an anti-lasik website that lasik works by taking a laser to the eye, and then when the eye heals, it heals in such a way that the vision becomes more clear.
The website was saying that because the final sha
While : While eyes my heal differently and result in minor deviations from the desired refractive outcomes, the majority of lasik treatmets are extremely accurate. If required, your surgeon will perform a second treatment to achieve the final refractive goal. Keep in mind that lasik is similar to receiving a permanent pair of glasses or contact lenses for your eyes. Therefore, if your refraction needs change over time, you may require additional lasik "touchups" to remain free from glasses. ...Read moreSee 2 more doctor answers
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