how to shop for glasses. what is the most important thing to "look" for when shopping for glasses? . what are the various materials used in "glasses"? . does frame design/material affect vision or is it merely a cosmetic thing? . do higher priced lens mean better lens? . how many pair of glasses should the average person have? . how do eye examinations differ from a shop front shop to an md? . at what age do our eyes undergo the greatest changes? . how often should a person expecially the elderly have a full eye examination?
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