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Doctor insights on: Night Blindness One Eye

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Night blindness in one eye at night. What's up?

Night blindness in one eye at night. What's up?

Depends: All depend on the cause of your blindness. Some are trasient or temporary. Others are permanent. See an experienced ophthamolosist. ...Read more

Dr. Damien Luviano
64 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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I have temporary night blindness in one eye. How is this possible? Can it be fixed?

I have temporary night blindness in one eye. How is this possible? Can it be fixed?

No such thing: There are many factors that can cause colors to look different to the two eyes, some may depend on lighting situation, age, cataracts, etc. Best to have an eye examination. ...Read more

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Should I get my eyes checked if I think I might have night blindness?

Should I get my eyes checked if I think I might have night blindness?

Yes: Night blindness (nyctalopia) is a condition in which it is difficult or impossible to see in relatively low light. It can exist from birth, can be caused by injury or malnutrition (such as low vitamin a), or can occur with several eye diseases, most commonly retinitis pigmentosa. Definitely get your eyes checked. ...Read more

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Can the eye look like this when the person has night blindness?

Can the eye look like this when the person has night blindness?

Appearance normal: Night blindness is a retinal problem and does not affect the looks of the eyes. It is a functional issue only and can be discovered only by functional testing. Your ophthalmologist can help you with this. ...Read more

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How do I tell if I have night blindness?

How do I tell if I have night blindness?

Can you see at night: If you are having difficulty seeing in low light like at night you should be evaluated by an eye doctor? ...Read more

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What is the medical term for night blindness?

What is the medical term for night blindness?

Nyctalopia: Or night blindness is a symptom of something else such as myopia or malnutrition it is treated based on the cause. It is the inability to see at night or in low light environment. ...Read more

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What is meant with the term "night blindness"?

What is meant with the term "night blindness"?

Nyctalopia: Night blindness refers to the reduced ability of the retinal rods to function under reduced lighting conditions. This affects functioning outside at night and the ability of the eye to adjust to changes from light to dark (movie theater) or dark to light. Associated with retinitis pigmentosa it represents a defect in rhodopsin regeneration cycle that occurs in the retinal pigment epithelium. ...Read more

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Can night blindness/light sensativity be cured?

Can night blindness/light sensativity be cured?

Yes find the reasons: “photophobia or light sensitivity is a common eye complaint. It can result from several different conditions and in most cases is easily treatable when you find the cause.
Treatment for night blindness will depend on its cause. Treatment may be as simple as a new prescription for your eyeglasses or switching glaucoma drugs, or it may require surgery if it's the result of cataracts. ...Read more

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Could you tell me about the discovery of night blindness?

Could you tell me about the discovery of night blindness?

Poor night vision: This is termed nyctalopia. It can occur in relationship to some inherited conditions of the retina like retinitis pigmentosa, but may be due to diffuse retinal disease such as diabetic retinopathy. If you find that night vision is diminishing by all means see your ophthalmologist as soon as possible for diagnosis and possible treatment. ...Read more

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What is the definition or description of: Night blindness?

Nyctalopia: Night blindness is technically termed nyctalopia. It refers to either slow adaptation to conditions of lowered light such as entering a darkened theater from outside sunlihgt, or to a condition of inability to see well at all at night which is common in conditions of inherited retinal degeneration. ...Read more

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What are symptoms of night blindness and how is it tested?

Peripheral vision: Night blindness - usually means deficiency of vision in low light situations, like finding a seat in a dark movie theater, bumping into things in the dark. There is an effect on the rods, or light and dark sensing cells in the retina. A specialized test can be done to make sure these cells are working well, it's called a (dark adapted) electro-retinogram. ...Read more

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Can anyone describe what "night blindness" is like? Is it just haloes?

Can anyone describe what "night blindness" is like? Is it just haloes?

Nyctalopia: Standard experience for older folks with night blindness, is trouble distinguishing shapes and objects in the dark, and delayed accomodation to decreased illumination. Haloes may be due to glaucoma, and cataracts can cause light sensitivity at night with a shimmering effect. So, decreasing acuity at night may be a variable experience. ...Read more

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Is night blindness a symptom of a tumor?

Is night blindness a symptom of a tumor?

No: Vitamin a deficiency and retinitis pigmentosa are common causes of night blindness. ...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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Tell me a night blindness treatment?

Tell me a night blindness treatment?

Find cause: "Night Blindness" can arise from poorly corrected vision, easily fixed with glasses to degenerative retinal disease and everything in between. Cataracts are probably the most common cause for poor night vision. Get an exam-- try an amber tinted lens for night driving. ...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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Can sinus infection cause temporary night blindness?

Can sinus infection cause temporary night blindness?

No: I'm not aware of any mechanism by which a sinus infection could cause this, and no patient of mine with sinusitis has ever had such a complaint. Night blindness, even temporary, is a big deal - be sure to have this evaluated by your physician. ...Read more

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Could my night blindness be due to a malabsorption of vitamin a?

Could my night blindness be due to a malabsorption of vitamin a?

Night blindness: True night blindness or nyctalopia (from greek νύκτ-, nykt- "night"; and αλαός, alaos "blindness") is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night blindness may exist from birth, or be caused by malnutrition (for example, a lack of vitamin a). Blood levels can be determined with normal range from 50 to 200 mcg/dcl. ...Read more

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Dr. Tim Conrad
442 Doctors shared insights

Loss Of Vision (Definition)

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


Dr. Robert Williams
64 Doctors shared insights

Night Blindness (Definition)

Night blindness is technically termed nyctalopia. It refers to either slow adaptation to conditions of lowered light such as entering a darkened theater from outside sunlihgt, or to a condition of inability to see well at all at night which is common in conditions ...Read more