This study was conducted to determine how much of a residua1 accommodation remained one hour after three instillations of atropine or homatropine in 384 eyes of younger Koreans. The amount of residual accommodation was measured by the blur point method, and the following results were obtained. 1) The average amount of the residual accommodation was 0.96 D under l% atropine and 1.42 D under 5% homatropine. 2) In comparing the two cycloplegic agents, 1% atropine was found to be more effective than 5% homatropine. 3) Residual accommodation under l% atropine and 5% homatropine showed gradually decrease in older patients. 4) No sex difference was found.
Accommodation, Ocular/*drug effects ; Adolescent ; Adult ; Atropa belladonna/*pharmacology ; Atropine/*pharmacology ; Child ; Female ; Human ; Korea ; Male ; *Plants, Medicinal ; *Plants, Toxic