The main goal of a presbyopic patient is to reduce dependence on optical aids and improve both distance and near vision as well as the range of clear vision. Several studies report good safety, predictability, and efficacy outcomes in the implantation with monofocal, toric and multifocal intraocular lenses (IOLs) after refractive lens exchange (RLE). Patients with hybrid spherical IOLs show goo...

We study confluent A-hypergeometric functions introduced by Adolphson [1]. In particular, we give their integral representations by using rapid decay homology cycles of Hien [17] and [18]. The method of toric compactifications introduced in [27] and [31] will be used to prove our main theorem. Moreover we apply it to obtain a formula for the asymptotic expansions at infinity of confluent A-hype...

A 5-year-old boy with severe ectopia lentis had bilateral lensectomy and suture fixation of a foldable acrylic intraocular lens (IOL) through a 3.0 mm clear corneal incision. Sodium hyaluronate (Healon GV) enhanced stability of the crystalline lens during aspiration and maintenance of the anterior chamber during passage of the needles through the ciliary sulcus. The haptic design of the single-...

METHODS: Retrospective case-control study. A total of 60 patients were studied, 30 who had undergone cataract surgery and implantation of an AcrySof® hydrophobic acrylic intraocular lens (IOL) 10 years or more prior to the study, and 30 who had undergone the surgery just 1 month prior to the study. The groups were compared in terms of bestcorrected visual acuity, contrast sensitivity and densit...

PURPOSE To prospectively evaluate postoperative clinical outcomes with implantation of toric intraocular lenses (IOLs) using preoperative keratometry from an optical low coherence reflectometry (OLCR) ocular biometer (Lenstar® LS900) and the built-in Barrett toric calculator. PATIENTS AND METHODS A prospective observational study recruited one or both eyes of subjects who underwent uncomplica...

We construct and apply Strominger-Yau-Zaslow mirror transformations to understand the geometry of the mirror symmetry between toric Fano manifolds and Landau-Ginzburg models.

The use of multifocal intraocular lenses (IOLs) is a great advance in the treatment of patients with cataract allowing near and distance uncorrected visual acuity recovery. However patients with some degrees of corneal astigmatism have some limitations. We present 3 cases that were indicated for phacoemulsitfication and multifocal intraocular lens implant (AcrySof Restor, Alcon Labs) after limb...

I mprovements in lens design over the past decade have made toric soft lenses a popular prescribing option for astigmatic patients. Prescribing of toric designs has increased around the world in recent years; one in four of new soft daily wear fits is a toric lens, compared to one in five in 2003.1 In the UK, a third of new fits were torics.2 New manufacturing techniques have brought improvemen...