Doctor insights on:
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.See 1 more doctor answer
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
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.
I have night blindness problem. I'm using -2 power glass. I take vitamin A Capsule.If I lasik will recover my those problems?
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.
Could travatan drop cause night blindness when driving such as a starburst pattern of oncoming headlights?
No: Sounds like a lens (cataract) or corneal issue. Go see your eye md.
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.
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.
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.
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.
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.
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.
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
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
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