Using data from two large previous studies, a group of American researchers were able to show that a high intake of the B vitamin folic acid appears to reduce the risk of developing a specific type of the eye disease glaucoma. Scientists believe it is done by lowering blood levels of homocysteine.
In fact, folic acid from dietary supplements was more effective in reducing the risk of glaucoma than folic acid from the diet. It may be due to the oddity that the form of folic acid we get from supplements is the better absorbable than folic acid from the diet.
According to a study from Ohio State University, Columbus, USA, people suffering from dry eyes may find relief by consuming more oily fish or taking a fish oil supplement.
Mice that are genetically predisposed to glaucoma may avoid the eye disease if vitamin B3 is added to their drinking water. This was seen in a study that is published in the journal Science. The scientists behind the study say that vitamin B3 was surprisingly effective at eliminating the molecular alterations that normally occur with age-related glaucoma. They even see the vitamin as an inexpensive and potentially powerful tool for preventing this disease in the future. People should make sure to get plenty of vitamin B3, and it is also important to know that imbalanced diets, alcohol abuse, and the use of diuretics may easily result in a deficiency of the nutrient.
Cataracts is a common cause of impaired vision, especially among the elderly. However, a new study of twins and the impact of genetic and environmental factors shows that higher intake of vitamin C may have help prevent this eye disease.