PURPOSE To determine the efficacy of the astigmatism correction following toric intraocular lens (IOL) and toric phakic IOL (pIOL) implantation in eyes with no previous ocular surgery and in postkeratoplasty (PKP) eyes. In addition, changes in corneal astigmatism were determined. METHODS Astigmatism was analyzed in 35 eyes with an AcrySof toric IOL, 35 eyes with an Artiflex toric pIOL, 50 eye...

Introduction: This small study relates our early experiences with the Limbal Relaxing Incision (LRI) for management of astigmatism in patients undergoing cataract surgery. Aims: To evaluate the efficacy of LRI in the management of primary astigmatism when combined with phacoemulsification. Subjects and methods: Limbal relaxing incisions were performed to correct primary astigmatism in 12 eyes o...

Corneal astigmatism occurs when one corneal meridian has a different refractive power from the orthogonal meridian. In regular astigmatism, the two meridians are at 90o from each other, such as a sphere having a cylinder superimposed on its surface. In irregular astigmatism the two meridians are not at 90o from each other or the cornea curvature is not axially symmetric. Irregular astigmatism c...

INTRODUCTION Post-operative astigmatism is one of the most important causes for diminution of vision after trabeculectomy. OBJECTIVE To evaluate the induced corneal astigmatism following trabeculectomy with the use of 8-0 silk suture. MATERIALS AND METHODS A prospective interventional study was done including 100 consecutive eyes of 84 patients who underwent trabeculectomy with the use of 8...

THE EXCENTRIC ASTIGMATISM PRK, A PHOTOREFRACTIVE METHOD TO CORRECT CORNEAL ASTIGMATISM USING TEE 193-NM EXCIMERLASER HUETZ,W.W., EOFFMANN,P.C., ECKHARDTJ3.B. Pumore: The Excentric Astigmatism PRK is a method to correct comeal astigmatism with two peripheral ablations which are performed outside an untreated central zone. Method% Two peripheral ablations of 3.4 mm diameter are performed outside ...

BACKGROUND We examined the effect of surgical repair on the pattern of refractive errors in Korean patients with congenital blepharoptosis. METHODS We reviewed the clinical records of 54 patients with congenital blepharoptosis who attended our hospital from 2006 to 2012 and underwent a detailed refractive examination before and after ptosis repair surgery. Among them, 21 of the patients whose...

PURPOSE Description of total corneal refractive power (TCRP) astigmatism by ray tracing using a Scheimpflug tomographer. METHODS Analysis of Scheimpflug tomography measurements to determine 3-mm-zone TCRP astigmatism (CATCRP) by ray tracing calculations, astigmatism in 15°-zone from simulated keratometry (CASim-K), anterior-surface astigmatism (CAant), and posterior-surface astigmatism (CApos...

INTRODUCTION LASIK surgery is currently the preferred procedure to correct low to moderate myopia. The aim of this study was to determine the orientation of the steepest meridian of regular astigmatism in order to determine the relative incidence of vertical, horizontal, and oblique regular astigmatism among highly myopic Egyptian patients seeking non-ablative surgical correction of the refract...

Objectives. To analyze the corneal astigmatism and axial length values in cataract surgery candidates. Methods. The files of patients who undergone cataract surgery between November 2012 and November 2013 were retrospectively selected and reviewed. The preoperative corneal keratometry measurements in the flat and steep axis and the axial lengths of the patients were recorded. Results. The study...

OBJECTIVE To compare the corneal astigmatism before and after the excision of pterygium and also to determine the correlation of pterygium size with the postoperative corneal astigmatism. STUDY DESIGN Cross-sectional interventional study. PLACE AND DURATION OF STUDY Eye Department, Combined Military Hospital, Abbottabad, from May 2011 to March 2012. METHODOLOGY Thirty patients underwent p...