Review of federal law and regulations: reimbursement under Medicare.
D000368:Aged; D001036:Aphakia, Postcataract / Q000628:therapy; D003261:Contact Lenses; D005139:Eyeglasses; D005260:Female; D006801:Humans; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence*; D008297:Male; D006278:Medicare / Q000191:economics* / Q000331:legislation & jurisprudence; D009907:Optometry / Q000592:standards*; D011216:Practice Management, Medical / Q000592:standards; D014481:United States