Their major work in most places is to prescibe glasses but in some states in the United States they take care of minor illnesses, too. If you have decreased vision, you should choose an optometrist who has knowledge of special lenses and other visual and environmental devices for the visually impaired. Ask your doctor during the visit when you should be seen next time. Young healthy persons do not need to go to an ophthalmologist or an optometrist often, once in five years or not at all. Elderly persons go more often if there are age related changes in their eyes that might require treatment in the future.
Many people believe that tiredness and burning sensation in their eyes are caused by old glasses.
The symptoms may be caused by an illness and should be checked by the ophthalmologist. Not all symptoms are caused by weak glasses.