Optometric identification and referral of patients needing medical care.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003951:Diagnostic Errors; D005128:Eye Diseases / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009907:Optometry / Q000592:standards*; D012017:Referral and Consultation