The effect of long-term hard lens wear on corneal endothelium.
D000328:Adult; D000368:Aged; D002452:Cell Count; D003261:Contact Lenses / Q000009:adverse effects*; D003315:Cornea / Q000166:cytology*; D004727:Endothelium / Q000166:cytology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors