title: Classificational distribution and age characteristics of contact lens clinic patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003261:Contact Lenses; D003315:Cornea; D005128:Eye Diseases / Q000145:classification / Q000175:diagnosis / Q000534:rehabilitation; D006801:Humans; D007223:Infant; D008875:Middle Aged