A new study suggests oral vitamins B1 and mecobalamin, a form of B12, can help relieve symptoms of  dryness, pain and light sensitivity.

“These observations suggest that oral vitamin B1 and mecobalamin can help nourish and repair the corneal nerve layer to some extent, thereby alleviating burning and photophobia,” the study authors concluded in their paper. Of note, oral vitamin B1 and mecobalamin were more effective in men than women, particularly for dryness and photophobia, they wrote.

Ren X, Chou Y, Jiang X, et al. Effects of oral vitamin B1 and mecobalamin on dry eye disease. J Ophthalmol. 2020;2020:9539674.

reported in Review of Optometry