While I have no doubt these drug therapies work for many people, I'm dismayed that so few doctors demand their patients with failing eyesight ALSO take vitamins A, C, E, amino-acid-chelated zinc, beta carotene and lutein. Some should also benefit from the herbs eyebright, bilberry, gotu kola, pycnogenol and possibly, grape seed extract.
D'oh! Almost forgot: American MDs have taken no more than 5 hours of nutrition classes in med school, if any at all, while they're subjected to dozens and dozens of presentations by pharma reps every year. I musta forgot to take my memory pills...
And the amino acids taurine and glutathione.