Doctor insights on:
Is There Any Vegetable Or Fruit That Can Help Your Night Vision
Depends: The basis for this "old wive's tale" is that, accurately, carrots as well as other yellow/orange vegetables and gourds (squash, pumpkin) are fantastic sources of vitamin a, an essential vitamin required for photoreceptor (cone/rod) metabolism. While severe vitamin a deficiency may lead to serious, but generally reversible, vision problems, such as night blindness, most people in developed countries meet more than their daily vitamin a requirements from normal diets and there is no need to consume exorbitant amounts of carrots. In fact, vitamin a excess may be toxic to the liver and some clinical studies have demonstrated that excess vitamin a metabolites may actually be potentially toxic to photoreceptors. ...Read moreSee 1 more doctor answer
Maybe: There were some studies many years back that demonstrated improved night vision if taking bilberry. 1 randomized study and 7 non- randomized studies demonstrated positive effect from bilberry. The 4 most recent randomized controlled studies demonstrate no affect of bilberry on night vision. http://www.ncbi.nlm.nih.gov/pubmed/14711439 and http://www.Thorne.Com/altmedrev/.Fulltext/5/2/164.Pdf. ...Read moreSee 1 more doctor answer
Yes: In some patients adding a negative 1/2 diopter improves their night vision. Also night vision goggles can improve your vision at night. Spending several minutes in the dark, adapts your rods so you can see better. Use a red light flashlight to avoid loosing your dark adaptation. Don't forget that wild cats have 6 times better night vision than humans, so be careful out there. :). ...Read moreSee 1 more doctor answer
Corrective lenses: We all get more myopic (near-sighted) at night (stiles-crawford effect). Sometimes a stronger spectacle rx is needed for driving in the dark. There are retinal conditions that can cause poor night vision (search "nyctalopia"). A refraction performed with pupils dilated and ability to accommodate paralyzed can establish baseline spectacle rx, . In older people, a common cause is cataracts. ...Read more
A little: Night perception requires the biochemical reconstitution of the light receptive pigments of the retina. As with all things, there is a little slowing of this with age. It is not usually very noticeable, so if this is a particular problem, see your ophthalmologist to see if there is another cause. ...Read more
Night Vision: There are two aspects to decreased night vision that have different causes. Some people experience blurred vision at night, such as difficulty reading road signs. This may be from a small glasses prescription that only shows up at night. Other people have trouble getting around in the dark, and the eyes adapt poorly to the dark. This may from retinal problems or nutritional deficiencies. ...Read moreSee 1 more doctor answer
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