Jan A. Venter

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PURPOSE To report the effectiveness, patient satisfaction, and complication rate with a zonal refractive intraocular lens (IOL) in a high volume of patients. SETTING Private clinic, London, United Kingdom. DESIGN Case series. METHODS Retrospective data of patients with binocular Lentis Mplus IOLs were analyzed. The main outcome measures were(More)
PURPOSE To provide an initial retrospective evaluation of early postoperative outcomes after wavefront-guided myopic LASIK using a new-generation Hartmann-Shack wavefront sensor. METHODS A noncomparative, retrospective study of 243 eyes of 126 patients that underwent primary wavefront-guided LASIK, using wavefront data obtained with a new Hartmann-Shack(More)
PURPOSE To evaluate the refractive outcomes and rotational stability after implantation of a multifocal toric intraocular lens (IOL) with a surface-embedded near section. SETTING Private center, London, United Kingdom. DESIGN Case series. METHODS This study evaluated eyes with more than 1.50 diopters (D) of preexisting corneal astigmatism. After(More)
PURPOSE To compare pupil sizes measured with the Colvard pupillometer, Procyon pupillometer, and NIDEK OPD-Scan. METHODS Pupil diameter was measured in 90 consecutive eyes from 55 patients under mesopic and scotopic light conditions with all three instruments. RESULTS The mean scotopic pupil diameter was 6.3+/-0.98 mm with the Colvard pupillometer and(More)
PURPOSE The purpose of this study was to evaluate the refractive and visual outcomes of wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism and cylindrical component ≥2.0 diopter (D). METHODS In this retrospective study, 611 eyes that underwent LASIK for simple or compound myopic astigmatism were analyzed. Preoperative(More)
OBJECTIVE To evaluate safety, efficacy, predictability, stability, complications, and patient satisfaction after implantation of Artisan toric phakic intraocular lenses (TPIOLs) for the correction of myopia or hyperopia with astigmatism. DESIGN Prospective, nonrandomized, comparative (self-controlled) multicenter trial. PARTICIPANTS Seventy eyes of 53(More)
PURPOSE To assess safety, efficacy, predictability, stability, and change in higher order aberrations after wavefront-guided LASIK for myopia and myopic astigmatism using the NIDEK NAVEX platform. METHODS Wavefront-guided LASIK was performed in 93 eyes in a 6-month trial with a goal of emmetropia. Treated eyes had a mean subjective manifest spherical(More)
PURPOSE To assess vision-related, quality-of-life outcomes 5 years after laser in situ keratomileusis (LASIK) and determine factors predictive of patient satisfaction. SETTING Optical Express, Glasgow, Scotland. DESIGN Retrospective case series. METHODS Data from patients who had attended a clinical examination 5 years after LASIK were analyzed. All(More)
PURPOSE To report the outcomes of the correction of mixed astigmatism with non-penetrating femtosecond laser intrastromal astigmatic keratotomy in patients with previous refractive surgery. METHODS One hundred twelve eyes that had low mixed astigmatism after excimer laser surgery, refractive lens exchange, or phakic intraocular lens implantation underwent(More)
PURPOSE To determine the predictability, efficacy, safety, and stability of LASIK using custom ablation with the NIDEK Advanced Vision Excimer Laser System (NAVEX). METHODS One hundred twenty eyes underwent LASIK for myopia using the OPDCAT algorithm. Refractive outcomes and the change in higher order aberrations, coma, and spherical aberrations were(More)