The authors evaluated the accuracy of topographic measurements with the laser tomographic scanner using a model eye. Diameter, depth, and shape at different axial lengths of four sample holes that simulated optic nerve heads in phakic and aphakic conditions were determined by confocal imaging. The computer-generated cross-section profiles of the simulated optic nerve heads corresponded well wit...

OBJECTIVE To investigate iris perfusion in patients with and without pupil ovalization after phakic intraocular lens implantation. METHODS Comparative retrospective randomized case series of 6 participants, each with a regular pupil, and 6 participants with pupil ovalization after phakic intraocular lens implantation for high myopia were included in the study. Indocyanine green angiography wa...

Cefazolin (2.25 mg) was injected into the vitreous cavity of phakic, aphakic, and aphakic/vitrectomized rabbits; inflamed eyes were compared to controls. Vitreous levels of cefazolin were determined at selected times from 2 to 48 hr, and the half-life was calculated. The effect of inflammation was to increase the half-life or to reduce the rate of elimination of cefazolin from the vitreous cavi...

PURPOSE To examine the efficacy, predictability, stability, and safety of posterior chamber phakic intraocular lens (IOL) implantation in eyes with high hyperopia. METHODS We analyzed the results of 24 eyes that received a posterior chamber hydrogel-collagen plate phakic IOL (Staar Collamer Implantable Contact Lens, ICL) for the correction of hyperopia with the goal of emmetropia. Mean follow...

BACKGROUND The purpose of this work is to report on the management of endophthalmitis in phakic eyes in which the crystalline lens was preserved. METHODS The current study is a noncomparative consecutive case series of patients who developed culture-proven endophthalmitis and were treated between January 1995 and June 2009. The study included only phakic patients whose infection was managed w...

PURPOSE To evaluate efficacy, predictability, and safety of Artisan toric phakic intraocular lens (Ophtec, Groningen, The Netherlands) implantation for the correction of astigmatism higher than 2 diopters. DESIGN Interventional case series. METHODS This prospective study included 27 eyes of 16 patients with a mean preoperative spherical equivalent of -11.78 +/- 6.24 diopters and a mean preo...

PURPOSE To evaluate the efficacy and safety of angle-supported phakic anterior chamber intraocular lenses in amblyopic adult eyes with very high myopia. METHODS We evaluated 12 eyes in nine patients with very high myopic amblyopia who received angle-supported phakic intraocular lenses (Phakic 6H) and followed them for more than six months. Uncorrected visual acuity (UCVA), best-corrected visu...

PURPOSE To evaluate variations in the position of the phakic iris claw lens (Artisan, Verisyse) and the natural crystalline lens during the accommodation process. METHODS We measured changes in position of the iris claw lens and the crystalline lens during the accommodation using optical coherence biometry (AC Master/Carl Zeiss Meditec, Germany) in 17 patients (28 eyes) with a phakic iris cla...

PURPOSE To demonstrate the methodology described by the American National Standards Institute (ANSI) Standard Subcommittee on Astigmatism Analysis reporting a standardized method of presenting astigmatism data by laser systems that reshape the cornea also applies to toric phakic intraocular lens (IOL) data. METHODS The U.S. Food and Drug Administration trial of the Visian Toric Implantable Co...

Objective To assess pre-operative conditions that could influence primary anatomical success rate in a cohort of patients with rhegmatogenous retinal detachments (RRD) treated vitrectomy and no scleral buckling. Methods A retrospective analysis was performed group underwent pars plana gas tamponade without buckling for RRD between 2014 2019, minimum follow-up 4 months. Results 305 eyes 301 were...