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Doctor insights on: Could My Night Blindness Be Due To A Malabsorption Of Vitamin A

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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 ????-, nykt- "night"; and ?????, 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.

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Dr. Damien Luviano
61 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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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.

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Brief-Night blindness. I have night blindness problem. I'm using -2 power glass. I take vitamin A Capsule.If I lasik will recover my those problems?

Brief-Night blindness.
I have night blindness problem. I'm using -2 power glass. I take vitamin A Capsule.If I lasik will recover my those problems?

No change in night: vision can be expected with Lasix surgery. Lasix surgery may clear the refractory problem so that glasses may not be necessary, and this can be determined by a consultation with an opthalmologist. Some condtions such as astigmatism are not as easily corrected with Lasix.

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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.

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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.

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My mom has night blindness or difficulty seeing due to cloudiiness. What can help?

My mom has night blindness or difficulty seeing due to cloudiiness. What can help?

Poor night vision: The impaired night vision may not be true night blindness and if it is cloudy vision at night this suggests the presence of cataracts and this is curable with cataract surgery. I would recommend seeing an ophthalmologist.

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I have really dim vision at night. Could it be night blindness?

I have really dim vision at night. Could it be night blindness?

Night blindness: Decreased vision in dim illumination can be normal or it may be related to eye related disease. See an eye doctor to determine the cause and initiate proper treatment.

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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?

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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.

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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.

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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.

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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.

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

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.

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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.

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Could I have night blindness if I have a harder time seeing to drive at night?

Possibly: A common cause of difficulty in night driving is cataracts which cause glare of oncoming headlamps and some corneal disease can do the same thing. True night blindness from photoreceptor dysfunction is uncommon and usually is accompanied by generally poor vision as well. Have you ophthalmologist see you to sort this out.

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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.

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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.

Dr. Tim Conrad
439 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. Lourdes Margarita Landron-Garcia
428 doctors shared insights

Vitamin A (Definition)

Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucous membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good vision, especially in low light. It may also be needed ...Read more