DOS Times Vol. 12, No. 4 October, 2006 Posterior capsule opacification (PCO) and posterior chamber intraocular lens (PC IOL) decentration still remain two major complications of successful extracapsular cataract surgery (ECCE) or phacoemulsification. Ridley, who performed the first intraocular lens implantation in 1949, himself noted these complications in his earliest patients.7 In his initial...

MAY 2011 CATARACT & REFRACTIVE SURGERY TODAY 45 A cornerstone of successful laser vision correction is the accurate centration of the ablation zone over the entrance pupil. Symptoms of poor visual acuity, poor quality of vision, loss of contrast sensitivity, halos/glare/starbursts, and multiple images (monocular polyopia) have all been reported after both PRK and LASIK in which a significant de...

PURPOSE To evaluate the repeatability of power profiles measured on NIMO TR1504 (Lambda-X, Belgium) and investigate the effects of lens decentration on the power profiles for single vision (SV), bifocal (BF) and multifocal (MF) contact lenses. METHODS Accuracy of the sphere power was evaluated using single vision BK-7 calibration glass lenses of six minus and six plus powers. Three SV and fou...