Vision - night blindness (Nyctanopia, Nyctalopia, Night blindness)

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You are here : AllRefer.com > Health > Medical Symptoms > Vision - night blindness

Vision - night blindness

Alternate Names : Nyctanopia, Nyctalopia, Night blindness

Definition

Night blindness is poor vision at night or in dim light.

Overview & Considerations

Night blindness may cause problems with driving in the evening or at night. People with night blindness often have trouble seeing the stars on a clear night.

Common Causes

Birth defects
Cataracts
Retinitis pigmentosa
Use of certain drugs
Vitamin A deficiency

In some cases, the eyes may simply have trouble adapting to darkness. The problem may not be due to another medical condition. However, it is often linked to myopia (nearsightedness).

Pictures & Images

External and internal eye anatomy

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Vision - night blindness : Definition
Vision - night blindness : Overview & Considerations
Vision - night blindness : Common Causes
Vision - night blindness : Home Care & Treatment
Vision - night blindness : Call your Health Care Provider if
Vision - night blindness : What to Expect at your Health Care Provider's Office
Vision - night blindness : Pictures & Images
External and internal eye anatomy

Review Date : 8/22/2008
Reviewed By : Paul B. Griggs, MD, Department of Ophthalmology, Virginia Mason Medical Center, Seattle, WA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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