George H H Beiko

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PURPOSE To compare contrast sensitivity after phacoemulsification with implantation of the Tecnis intraocular lens (IOL) between patients with a selected preoperative corneal spherical aberration and patients without a selected amount of aberration. SETTING Private practice, St. Catharines, Ontario, Canada. METHODS Thirty-three cataract patients were(More)
PURPOSE To compare near vision and quality of vision after controlling for pseudoaccommodation in patients with single-optic accommodating intraocular lenses (IOLs) or monofocal IOLs targeted for mini-monovision. SETTING Clinical practice. DESIGN Prospective randomized controlled clinical trial. METHODS Patients were randomized to bilateral(More)
PURPOSE OF REVIEW Postoperative endophthalmitis is an ophthalmic surgeon's most feared complication, as it portends a high probability of visual loss. The purpose of this article is to review the literature on the subject of preoperative measures used for prevention of postoperative endophthalmitis and to determine the effectiveness of these measures. (More)
PURPOSE To determine if intraocular lens (IOL) choice at the time of cataract surgery affects driving habits. MATERIALS AND METHODS Pseudophakes who were 28-35 months postbilateral cataract surgery with one of two contemporary one-piece hydrophobic acrylic IOLs (SN60WF or ZCB00) were asked to complete the Driving Habits Questionnaire, a validated(More)
BACKGROUND Healon5, the first viscoadaptive agent introduced in ophthalmic surgery, has been judged to be superior to Healon GV in protecting corneal endothelial cells. The purpose of this study was to compare the endothelial protective effects of I-Visc Phaco, a newer viscoadaptive agent, with those of Healon5 in cataract phacoemulsification. METHODS A(More)
PURPOSE To determine the spherical aberration of the cornea in the general population and whether keratometry readings are predictive of corneal spherical aberration values. SETTING Private comprehensive ophthalmology practice. METHODS Corneal spherical aberration and keratometry readings were measured in 696 normal eyes of patients presenting for(More)
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UNLABELLED Improvements in phacoemulsification technology and instrumentation and intraocular lens materials and design have enabled cataract surgery to be performed through incisions smaller than 2.0 mm in external width. This evolution has occurred over time, with new challenges arising at each step of the decrease in incision size. This article reviews(More)
IOL here. The IOL loop size is tailored in these eyes because the standard haptic may be too long for corneas with a horizontal diameter less than 9.0 mm. In that case, we would perform accurate trimming (without sharp edges) of the haptic ends (Figure 2, b) and insert the haptics into the tunnels. We have performed the glued IOL technique in 5 microcornea(More)
PURPOSE To evaluate mesopic visual acuity and visual quality as measured by objective scatter index (OSI) in pseudophakic eyes with long-term follow-up after implantation of hydrophobic acrylic lenses made from two different lens materials. SETTING This study was carried out in a private clinic. DESIGN This study was an observational cohort study. (More)