It seems that I have MD in one eye and the other eye is good. Except that I usually wear spectacles. Now I can see that a pair of spectacles to support only on eye , the other eye being diseased and not all that useful at the moment, what happens about the spectacles -- do they have a prescription lense for the good eye and no lense for the bad eye??? or what? For people with MD in both eyes, I understand that spectacles are of no use at all?