TY - JOUR T1 - EFFECT OF HOMATROPINE 2% EYE DROP ON THE CORNEAL TOPOGRAPHY TT - بررسی اثر قطره هوماتروپین 2% بر روی توپوگرافی قرنیه JF - RJMS JO - RJMS VL - 7 IS - 20 UR - http://rjms.iums.ac.ir/article-1-410-en.html Y1 - 2000 SP - 134 EP - 137 KW - 1) Central corneal curvature 2) central corneal power 3) corneal topography N2 -  ABSTRACT The purpose of this study was the evaluation of cycloplegic effect of homatropine 2% on central corneal curvature and power. 43 volunteers who participated in the study were examined. Thirty-nine of them (28 men and 11 women) which had normal eyes with visual acuity of 20/20 and a mean age of 29.6 ± 6.7 years were selected. Then corneal topography was performed on both eyes. After performing corneal topography, a drop of homatropine 2% was instilled 6 times (at 10 minute intervals) in one eye and the other was the control eye. One hour after the final instillation of homatropine 2%, we then repeated corneal topography on both eyes. Central corneal curvature and power were evaluated and compared in series of corneal topographies. After instillation of homatropine 2% eye drop, central corneal curvature increased by a mean of +0.13 ± 0.11mm and central corneal power decreased by a mean of 0.76 ± 0.14 diopter (corneal flattening). It seems that cycloplegic effect of homatropine 2% eye drop decreases traction on scleral spur and then central corneal curvature increases and central corneal power decreases. M3 ER -