Doctor insights on:
What Drugs Can Damage Eyesight And Lead To Blindness
Vision impairment and blindness are conditions in which a person cannot see well or see at all, even with glasses or contact lenses. If a person's best vision (with correction) out of either eye is only 20/70 - 20/200, he is impaired. If he can see no better than 20/200 or his visual field is no more than 20 degrees (severe "tunnel" vision), ...Read more
My eyesight is -4 with cylinderical -1. Can it be made 20/20 by any mean. How poor eyesight can lead to blindness?
Should be ...: Correctable with glasses or contact lenses, or even laser eye surgery. If not correctable then there are other things going on the prevent this like a cataract or retina abnormalities. You need a good pomprehensive eye exam, this will determine what is going on with your eyes. ...Read more
Lasik eye sugery. Is that safe? What's the risk. Will it lead to even worse eyesight or blindness?
Very safe: This is now a well worked out procedure. The major risk is the development of eye dryness afterwards. Rarely the final power is a little off but can be touched up if needed. Changes for the worse in eyesight are extremely rate and blindness has not been reported in millions of cases. ...Read moreSee 1 more doctor answer
Powders & Potions: Wood alcohol (methanol) can contaminate moonshine whiskey and lead to rapid, permanent vision loss. Tobacco-alcohol amblyopia is a vitamin deficiency that may be partially reversible. Talc powder, as a contaminant of intravenous drugs, can cause capillary occlusion in the retina. Marijuana and hallucinogens alter the visual experience, but do not cause vision loss. Mj is good for glaucoma. ...Read moreSee 2 more doctor answers
Regular check up: With no risk factors you only need to have an occasional eye examination. If you have eye disease in the family, have symptoms related to the eyes, or have certain systemic illnesses like diabetes, then you should be seen often. In addition a healthy lifestyle and diet, and protection of the eyes from injury can also add to the eye protection you seek. ...Read more
Surgery the trauma?: An implant: one such device is the creation of shawn kelly from carnegie mellon university in pittsburgh, and the result of a decade's worth of research. It is made up of two tiny cameras attached to a pair of glasses which send images to a computer chip attached to the patient's eye. The chip turns the images into an electrical current sent along a wire to a film inserted behind the retina. ...Read more
If you're born blind can it be possible to gain eyesight from a person who has donated their eyes?
Unlikely: Most blindness at birth is from gross malformation of the eyes, serious defects in the nerve supply and major inherited issues. Eye donation is useful only to corrected corneal opacities and a few infants are born with only this problem but the others problems are much more common. Check with your pediatric ophthalmologist for the best forward pathway. ...Read more
Without papiledema, is my benign intercranial hypertension unlikely to make me go blind? Other SX are bad but eyesight ok so far. Please help.
Unlikely: Most commonly papilloedema from idiopathic intracranial hypertension (IIH) causes the natural blind spot that everyone has in their vision to be slightly larger. Most of the patients I see are still 20/20. It is reassuring that your eye exams are coming back normal. Continue follow up with your ophthalmologist and the team managing your IIH. Missing check ups is a hazard. Good luck. ...Read more
Probably not: A level of -10.25 is highly myopic but if correctable to 20/20 with proper eyeglasses or contacts, then you definitely are not legally blind. Legal blindness refers to the best corrected vision/ not to the uncorrected vision. Your level of myopia is high but not extreme. Contact lens manufacturers pre-make soft lenses in the most common powers from 0.00 to -12.00. So they think -10 is common. ...Read more
I am 47 yrs and I have bad eyesight.Right eye is -20 and left is - 19. How much worse can it get?Will i go blind soon?I m scared.
It depends: As long as you can see well with glasses or contacts, you will not go blind. However, if your glasses prescription is still changing, that is unusual at age 46-- i would see an ophthalmologist to find out why. You may have pathologic myopia or possibly keratoconus. Sometimes surgery can be helpful for someone with very high myopia (nearsightedness). ...Read more
What are the risks associated with laser eye surgery? I have very bad eyesight and am tired of wearing glasses, but i'm afraid that laser eye surgery could make me go blind. Is that a possibility? Are there any serious side effects of the surgery?
There are risks: Lasereyesurgery perfomed with the correct pre, intra and postoperative care is often life changing.However, there are potential complicatiuons for every type of surgery.Night vision disturbances, glare and halos are common, often improve and usually tolerable. More severe complications such as inflammations and infections can often be treated with good results.Major visual loss is rarely possible. ...Read moreSee 1 more doctor answer
Loss of vision reflects the inability to perceive images. Such a phenotype can be due to occlusive or barriers to light (e.g. cataracts) through retinal alterations (e.g. wet macular degeneration) to optic nerve lesions (e.g. from a pituitary adenoma) to central nervous system ...Read more
Sight is the sum of the light receptive and integrative capacity of the eye including best vision, color vision, night vision, depth vision, field of vision and the ability to track objects in motion. An ophthalmologist can measure these and determine the function of ...Read more
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