EyeWorld is the official news magazine of the American Society of Cataract & Refractive Surgery.
Issue link: https://digital.eyeworld.org/i/387844
131 October 2014 EW MEETING REPORTER corneal drug penetration. She said this is also supported by indirect in vivo measurements in both rabbits and humans; however, the clinical relevance of this information is not yet known. IOL technology and new IOLs A free paper session highlighted IOL technology and new IOLs. Presen- tations from physicians around the world looked at various IOLs, showing updated results or new techniques for correction of specific issues. Warren Hill, MD, Mesa, Ariz., U.S., discussed 4 different intraocu- lar lenses: the ReSTOR 2.5 D (Alcon, Fort Worth, Texas), the ReSTOR 3.0 D (Alcon), the FineVision (PhysIOL, Liege, Belgium), and the AT LISA (Carl Zeiss Meditec, Jena, Germany), a trifocal lens. In the study of these 4 lenses, simulated visual quality and occur- rence of background halos differed between IOLs according to their design features, Dr. Hill said. The 4 multifocal lenses showed acceptable distance visual quality. The best distance visual quality and lowest halo intensities were observed with the ReSTOR 2.5 D and ReSTOR 3.0 D IOLs, he said. A useful third focus for intermediate vision was observed with the AT LISA tri and FineVision IOLs, but this was associated with increased back- ground shadows. Guenal Kahraman, MD, Vienna, Austria, highlighted supplementary IOLs, including a study of the Rayner Sulcoflex Aspheric (653L) (Rayner, East Sussex, U.K.). Supplementary IOLs have been available in Europe for several years, but no long-term studies have been conducted. The Sulcoflex is designed to be implanted in the ciliary sulcus for pseudophakic eyes. It is a single-piece, hydrophilic acryl- ic that is 14 mm in total diameter with a concave posterior surface. Dr. Kahraman's study was a prospective non-randomized study of 47 eyes. "The Sulcoflex IOL was well-to - erated in all study eyes," he said. In patients with a significant residual refractive error following the primary IOL implant, it is often easier to leave the primary implant in place and calculate the secondary IOL power to achieve the desired refraction. "Secondary implantation of the Sulcoflex IOL in the cilia y sulcus is a safe and predictable option for pa- tients with pseudophakic refractive errors," he concluded. Multiple risk factors for capsule rupture during cataract surgery Risk factors for capsule rupture in phacoemulsification include post - rior polar cataracts, white cataracts, pseudoexfoliation, and previous vitreoretinal surgery, said Oliver Findl, MD, Vienna, Austria. Dr. Findl opened the joint ESCRS/ EURETINA Symposium "Vitreoreti- nal Complications of Anterior Segment Surgery" with a discussion of the basics of the broken capsule and the vitreous. He began his talk by outlining the anatomy and function of the vitreous for both anterior and posterior surgeons in attendance. "The function of the vitreous is to support function to fill the back of the eye, act as a shock absorber, but it is also a diffusion barrier between the anterior and the posterior segment. It also has a metabolic buffer function," he said. Posterior capsule rupture is the most common intraoperative com- plication in cataract surgery, he said. "It is associated with the need for additional surgical procedures, more follow-up, and especially with an increased frequency of compli- cations," he said. Complications associated with lesions of the vitreolenticular barrier are cystoid macula edema and rhegmatogenous retinal detachment, he said. Signs of capsule rupture include slight deepening of the anterior continued on page 132 VISIT US AT THE 2014 AAO ANNUAL MEETING CHICAGO BOOTH NUMBER 233