Zymaxid can be expensive if you don't have health insurance, prices at local pharmacies can vary greatly, but be prepared to pay as much as $100 for a 2.5ml bottle size of zymaxid 0.5 eyedrops.
Vitamin A is critical for vision as an essential component of rhodopsin, a protein that absorbs light in the retinal receptors, and because it supports the normal differentiation and functioning of the conjunctival membranes and cornea [2-4].
Vitamin D and Its Effects on Eyesight. An eye doctor trying glasses on a patient. It has been estimated that the complex system that enables eyesight requires about 30 percent of a personâs oxygen intake and 25 percent of their nutritional intake. Thus, healthy eyesight depends on essential nutrients, such as vitamins. Vitamins A, C and E are antioxidants that have been well-established as preserving eyesight and promoting healthy eyes, but evidence suggests vitamin D is associated with reduced risks of macular degeneration.