Arthur B. Cummings

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PURPOSE To explore the efficacy, safety, and predictability of topography-guided laser epithelial keratomileusis (LASEK) and LASIK treatments using the ALLEGRO Oculyzer (rotating Scheimpflug image-based) as compared to the ALLEGRO Topolyzer (Placido disk-based) platform (WaveLight AG). METHODS In this retrospective, non-comparative case series, 72 eyes(More)
PURPOSE To evaluate and compare the safety and efficacy of accelerated (AXL) and standard corneal cross-linking (CXL) protocols in patients with progressive keratoconus. METHODS Progressive keratoconus patients (14-40 years) received either standard-intensity CXL or high-intensity CXL (AXL). Corneas were exposed to ultraviolet-A 365 nm light for 30(More)
Corneal Cross-Linking (CXL) is an established surgical procedure for the treatment of corneal disorders such as corneal ectasia and keratoconus. This method of treatment stabilises the corneal structure and increases rigidity, reducing the requirement for corneal transplantation. Since its development, many scientific studies have been conducted to(More)
PURPOSE To compare the intended versus the resultant thickness of laser in situ keratomileusis (LASIK) flaps created with a new femtosecond laser and to report the 3-month postoperative refractive outcomes. SETTING Wellington Eye Clinic, Dublin, Ireland. DESIGN Retrospective consecutive case series. METHODS A consecutive series of eyes having LASIK(More)
PURPOSE The aim of this study was to investigate morphological changes, using second-harmonic (SH) optical imaging, in the corneal stroma after normal- and high-intensity collagen crosslinking in postmortem enucleated porcine eyes at controlled intraocular pressures (IOPs). METHODS Reflection-mode SH optical imaging of the stroma was realized after(More)
PURPOSE To assess the efficacy, safety, and predictability of an individualized laser in situ keratomileusis (LASIK) ablation profile based on an optical ray-tracing algorithm to treat moderate to high myopic astigmatism. SETTING Ophthalmology centers in Zurich, Switzerland; Dublin, Ireland; and, Cologne, Germany. DESIGN Multicenter clinical trail. (More)
Before the discovery of corneal cross-linking (CXL), patients with keratoconus would have had to undergo corneal transplantation, or wear rigid gas permeable lenses (RGPs) that would temporarily flatten the cone, thereby improving the vision. The RGP contact lens (CL) would not however alter the corneal stability and if the keratoconus was progressive, the(More)
By Arthur B. Cummings, MB ChB, FCS(SA), MMed (Ophth), FRCS(Edin) A small percentage of LASIK patients require enhancement following the primary procedure. These enhancements occur mostly within the first year, and there are no particular challenges with how to perform them. As long as there is enough corneal tissue, the surgeon simply lifts the flap,(More)
In an eye with a preexisting posterior capsule defect, one may have to resort to a 3-piece PC IOL fixated in the sulcus. In an eye with both zonular dialysis and a posterior capsule defect, an iris-fixated IOL that preferably is fixated to the backside of the iris or a scleral-fixated PC IOL might be the only choices. This patient's eye should be monitored(More)
PURPOSE To compare the safety, efficacy, and predictability of laser in situ keratomileusis treatments at 1 year postprocedure using a novel geometric ray tracing algorithm with outcomes of treatments using wavefront-optimized, wavefront-guided, and topography-guided ablation profiles of an excimer laser (WaveLight GmbH, Erlangen, Germany; Alcon(More)