PURPOSE To compare the predicted and actual refractive errors of hydrophilic, one-piece, C-flex 570C (C-flex) intraocular lens (IOL) implantation in simultaneous vitrectomy and lens extraction in various conditions. METHODS One hundred fifty-nine eyes of patients who had lens extraction between March 2004 and September 2005 were enrolled in a retrospective study. Group 1 had lens extraction a...

OBJECTIVE To compare the refractive errors measured by the VISX WaveScan, OPD-Scan III and the subjective refraction. The optometry accuracy of computer operated aberrometer used before refractive surgery has been debatable. Hence, a clear study on the role of such automated equipment in optometry is the need of the hour as compared to subjective refraction. PATIENTS AND METHODS Seventy-six p...

PURPOSE To access the reliability of corneal thickness measurements by Orbscan II and ultrasound pachymeter. METHODS A retrospective study of 134 eyes from 67 normal subjects between January and June 2001 was obtained. Sex, age, visual acuity, refractive error and corneal thickness measurements by Orbscan II and ultrasound pachymetry were evaluated. All results were analyzed by the paired t t...

PURPOSE To determine the accuracy of photorefraction and autorefraction as compared to cycloautorefraction and to detect the repeatability of photorefraction. METHODS This diagnostic study included the right eyes of 86 children aged 7-12 years. Refractive status was measured using photorefraction (PlusoptiX SO4, GmbH, Nürnberg, Germany) and autorefraction (Topcon RM800, USA) with and without ...