Eyeworld

EW CATARACT 26 April 2018 Presentation spotlight by Stefanie Petrou Binder, MD, EyeWorld Contributing Writer Seventeen eyes A new study that evaluated the postoperative functional results and patient satisfaction after implan- tation of a novel extended depth of focus (EDOF) trifocal IOL, the AT LARA 829 (Carl Zeiss, Meditec, Jena, Germany), demonstrated enhanced intermediate range visual acuity with less optical phenomena than other multifocal IOL models. According to Florian Kretz, MD, Augenärzte Gerl, Kretz & Kollegen, Rheine-Ahaus, Germany, who con- ducted the study and was the lead author of an e-poster presented at the XXXV Congress of the ESCRS, patients who chose intermediate and distance vision over near were best suited for this lens. "Patients with a high demand for distance and up to 60 cm inter- mediate vision who are accepting of reading glasses but still want the best possible option for high optical quality are ideal candidates for this novel EDOF IOL," Dr. Kretz said. Dr. Kretz' study included 17 eyes of 10 patients (four female and six male) with a median age of 69 years (age range: 51–78 years). He evaluated post-refractive results and functional results including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA) at 4 meters, uncor- rected near visual acuity (UNVA), distance corrected near visual acuity (DCNVA) at 40 cm, distance cor- rected intermediate visual acuity (DCIVA) at 90 cm, 80 cm, and 60 cm, defocus curve, HD Analyzer (Visiometrics, Costa Mesa, Califor- nia), halo and glare simulator, and subjective questions. The preoperative median sphere was +1.5 D, ranging from –1.0 to +4.0 D, the median cylinder was –0.75 D, ranging from –4.0 to –0.25 D, and the median spherical equiva- lent was 0.875 D, ranging from –1.5 to +0.875 D. AT LARA 829 The AT LARA 829 IOL is a next generation EDOF IOL. It promises a wider range of focus within the EDOF segment with less visual side effects and dysphotopsias than mul- tifocal IOLs (MFIOLs). The reason for this lies in the optic design of Novel EDOF trifocal IOL may meet demands for improved intermediate vision Monocular and binocular defocus curves of the AT LISA 829 show a wide range of vision from distance to near intermediate (60 cm). McAlinden questionnaire results for dysphotopsia questions show a low degree of subjective disturbances. Source: Florian Kretz, MD continued on page 28 IOL study shows high patient satisfaction and spectacle independence for distance and intermediate visual ranges in presbyopic patients R educing spectacle de- pendency in presbyopic patients is a major focus of cataract surgery. Presby- opic patients are more ac- tive than ever, making low compro- mise, full range of vision artificial lenses highly sought after. The reli- ance on computers, dashboards, and smartphones in everyday life has rendered spectacle-free intermediate vision more important for patient satisfaction. As the demands for bet- ter intermediate vision continue to rise, new IOL technologies promise to help meet these expectations.

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