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Doctor insights on: Night Blindness Is Caused By The Deficiency Of

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Effects of vitamin a deficiency & night blindness?

Effects of vitamin a deficiency & night blindness?

Rare: It take an extraordinary elimination diet to get vitamin a levels low enough to affect vision in the first world. The only known cases in such circumstances have been those on extreme diets such as all polished rice for over a year. There; are causes for night blindness. Which your ophthalmologist can diagnose, but vitamin a deficiency is unlikely. ...Read more

Dr. Damien Luviano
50 doctors shared insights

Blindness (Definition)

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


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How can I treat a vitamin a deficiency, night blindness, xerophthalmia, and follicular keratosis?

How can I treat a vitamin a deficiency, night blindness, xerophthalmia, and follicular keratosis?

Look for cause: If you're eating a varied diet and are not restricting yellow vegetables, it is surprising that you are vitamin A deficient. You may want to be evaluated for malabsorption. ...Read more

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I have heard that Crohn's can cause "night blindness"?

I have heard that Crohn's can cause "night blindness"?

Very rarely: Severe chronic and active disease of the small bowel, or removal of a large portion of the small bowel, can lead to vitamin a deficiency in crohn's disease patients. ...Read more

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Can implanon cause night blindness?

Can implanon cause night blindness?

Unlikely: This is not a documented side effect of this medication. If you truly believe there is an association, you should advise your physician or provider who placed the Implanon so that you can be examined and any possible reaction you have had can be documented. ...Read more

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Can a raised retina cause night blindness?

See answer: A detached retina will cause decreased vision both at night and during the day. However night blindness alone is not a usual symptom of detached retina. ...Read more

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Any ideas why myopia causes night blindness?

Any ideas why myopia causes night blindness?

It doesn't: Although many myopic people have some difficulty seeing at night, this is not night blindness. Classically night blindness is caused by a peripheral retinal disorder called retinitis pigmentosa. ...Read more

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I was wondering what are some causes and cures for night blindness?

I was wondering what are some causes and cures for night blindness?

Can be treatable: Nyctalopia can be caused by a number of things. A few are birth defects, vitamin a deficiency, medications, glaucoma, diabetes, cataracts, severe near sightedness, retinitis pigmentosa, and refractive surgery (eg. Lasik). There are other causes (some untreatable) but of the ones listed above the only untreatable causes are birth defects and retinitis pigmentosa. Treatable not same as curable. ...Read more

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What are d causes of night blindness?

What are d causes of night blindness?

Genetics: There are congenital issues that can cause night blindness---it is rarely acquired unless there is severe retinal disease. ...Read more

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What causes night blindness to happen?

What causes night blindness to happen?

Inherited Disease: Retinitis pigmentosa is a group of inherited disorders that cause degeneration of the retina and vision loss. The condition can be inherited in multiple ways and has a variety of symptoms. The most common ones are night blindness and gradual loss of peripheral vision. There is currently no proven treatment, however gene therapy is being explored as a possibility. ...Read more

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Dr. Tim Conrad
616 doctors shared insights

Vision Loss (Definition)

Vision loss is where a person becomes unable to see to the extent that they were previously able. This can include a total loss of vision, a loss of visual acuity, or a loss of part ...Read more


Dr. Tim Conrad
425 doctors shared insights

Loss Of Vision (Definition)

Loss of vision is a symptom in which a person loses some or all ability to see, either in one or both eyes. Loss of vision can be temporary or permanent, and ...Read more