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 C helps with long term healthy vision support. Vitamin E helps with long term healthy vision support. R- Alpha lipoic acid is a powerful antioxidant that enhances glucose use in brain and eye cells. Usually a dose of 10 to 50 mg of R-Alpha lipoic acid can have a positive influence on vision.
Vitamin E protects eyes, just like rest of the body, from harmful effects of free radicals. It helps in providing shield to eyes against environmental stresses. Vitamin E is found in abundance in safflower oil, seeds, nuts especially walnuts, spinach, tomato, pumpkin, sweet potatoes, mangoes, olives, papaya, etc.