Journal of Refractive Surgery · 2010 · 23 citations · 8 references
MedicineOphthalmologySurgeryClinical Vision ScienceOphthalmic SurgeryRefractive SurgeryAstigmatism CorrectionLens SurgeryPhakic Intraocular LensesPostoperative Refractive OutcomesPreoperative Refractive EvaluationRefractive ErrorAstigmatismImplantable Collamer LensPostoperative AstigmatismPupillary BlockRefractive AstigmatismResidual AstigmatismResidual Refractive Error CorrectionSpherical Equivalent Refraction
PURPOSE: To evaluate the feasibility of piggyback insertion with a toric Implantable Collamer Lens (ICL, STAAR Surgical). METHODS: This study investigated eight pseudophakic eyes of five patients who underwent piggyback insertion of a toric ICL to correct residual refractive error. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and manifest refractive sphere and astigmatism were measured before and 6 months after surgery. RESULTS: Pre- and 6-month postoperative logMAR UDVA were 0.759±0.430 and 0.201±0.458, respectively. All eyes were corrected within ±0.50 diopters (D) of intended spherical equivalent refraction. The manifest refractive astigmatism was within ±0.50 D in five (62.5%) eyes and ±1.00 D in seven (87.5%) eyes. No eyes lost more than one line of CDVA. Pupillary block occurred in one eye on postoperative day 1. CONCLUSIONS: Piggyback insertion of a toric ICL appears to be effective and predictable in correcting refractive error in pseudophakic eyes.
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Toric Implantable Collamer Lens for Moderate to High Myopic Astigmatism
Donald R. Sanders, David M. Schneider, Robert G. Martin et al. · Ophthalmology · 2006 · 184 citations
Medicine, Ophthalmology, Surgery +14