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I've suffered night blindness since my early twenties. My daughter says I'm a menace on the road at night. Here are causes of night blindness.

Leading Cause of Night Blindness

Blindness of the eye at night is most commonly attributed to a diseased retina. To properly understand how the retina works, we should know the two kinds of light sensitive cells, which compose it, are called rods and cones.

Rods help us see in dimly lighted situations. When rods are mal-functioning, driving at night becomes a challenge.

Cones help us discern colors. Unlike rods, cones function best in brighter light.

Vitamin a Deficiency

Vitamin A, or retinol, produces pigments in the retina, which foster good vision. Check with your doctor before beginning an enhanced Vitamin A regime because in addition to turning the skin yellow, an overabundance of this vitamin may cause poisoning. Vitamin A is stored by the body, instead of released in the urine like most other vitamins.

Instead of supplements, opt for natural sources of Vitamin A such as: milk, cheese or calf liver.

Retinitis Pigmentosa

Night blindness is also hereditary. The medical term for this condition is Retinitis Pigmentosa. People with this disease experience destruction of rods and cones.

Not only does this hereditary condition cause night blindness, day vision will eventually be affected. It is wise to have your annual eye exam performed by an ophthalmologist, who can diagnose Retinitis Pigmentosa.

Cataracts

Cataracts are another unwanted "bonus" caused by the aging process. Protein deposits develop to the extent, cataracts form, causing night blindness and clouding vision during the daytime.

Cataracts are treatable by your ophthalmologist.

Other Causes of Night Blindness

Myopia or near-sightedness is a lesser known cause of night blindness. Trouble seeing in dim light due to Myopia is sometimes corrected by wearing glasses. (Mine is not.)

Diabetic retinopathy may cause night blindness.

Macular degeneration, another age-related condition, may cause night blindness, and possibly lead to partial or total blindness.

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Comments

  • dashboardc33 3/11/2012

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    Great causes of night blindness! h5!

  • hummingbirdee 3/4/2011

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    I've never seen well at night for as long as I can remember. Maybe some vitamin A would help. Great information!

  • clewand550 3/4/2011

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    Very nice informative list of causes of night blindness. Thoroughly enjoyed reading this list. Nice job. H5 list.

  • JennyHeart 3/4/2011

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    Great list indeed Bonnie!

  • litetender 3/4/2011

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    Good article ... I have a friend who has had night blindness since she was 18 and not from any of your reasons (she doesn't know why) ... maybe Snakesmom's reason! I get to do all the night driving. Good, informative article. Thanks!

  • PriscillaBenfield 3/4/2011

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    Excellent info on night blindness!

  • Snakesmom 3/3/2011

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    I too suffer from night blindness and saw a specialist about it and explained to me that when 2 people get together with the exact right eye types (my parents) and have children all the children will be night blind. Which explains why my siblings all suffer from it too. The worst part is there are no corrective lens to correct it, I basically have to let someone else drive at night or drive with the brights on (sorry folks, but some of us actually have to do it). I tend to follow other vehicles which seems to help by letting them lead the way. Great article! H5!

  • goodselfme 3/3/2011

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    Well researched and detailed with an ease to follow for a well rounded education about night blindness.

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