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22 | EYEWORLD | OCTOBER 2020 Contact Reddy: hreddy@nyee.edu ASCRS NEWS listed as part of the preoperative variables under previous ophthalmic surgeries. The authors in- cluded data from Jan. 1, 2008, to Dec. 31, 2018. The dataset consisted of 19,416 eyes undergoing cataract extraction after vitrectomy (1.1% of the 1,715,348 patients in the database who had cataract extraction). The mean age of 64.1±10.1 years in the post-vitrectomy group was significantly younger than patients in the rest of the database (73.7±9.8 years). There was a significantly lower distribution of females in the post-vitrectomy group (47.5%) than in the rest of the database (58.1%). The preoperative visual acuity for eyes with previous vitrectomy was significantly worse, logMAR 0.61±0.35 (decimal 0.25) compared with 0.37±0.27 (decimal 0.45) for the non-vitrectomized eyes. Postoperative visual acuity was also signifi- cantly worse in vitrectomized eyes compared ophthalmic surgeries. Surgical data reported includes date of surgery, type of operation, intraocular lens material, and complications during surgery. Follow-up data includes date of examination, uncorrected distance visual acuity, best-corrected distance visual acuity, refrac- tion, macular degeneration, and postoperative complications. From this database, the authors selected patients who had previous vitrectomy continued from page 21 continued on page 24 Cataract surgery of eyes with previous vitrectomy – risks and benefits as reflected in the European Registry of Quality Outcomes for Cataract and Refractive Surgery Mats Lundström, MD, Mor Dickman, MD, Ype Henry, MD, Sonia Manning, MD, Paul Rosen, FRCS, Marie-José Tassignon, MD, David Young, PhD, Ulf Stenevi, MD J Cataract Refract Surg. 2020;46(10). Article in press. data were reported to EUREQUO. Previous vitrectomy was reported in 19,416 eyes comprising 1.1% of all cases. This proportion was about the same for every single study year. The patients were in majority men and their mean age was 64.1 years compared with 73.7 years for the rest of the database. The preoperative visual acuity was modestly worse in post-vitrectomy eyes compared with the opposite (corrected distance visual acuity [CDVA] 0.45 vs. 0.25, respectively). A postoperative CDVA of 0.5 or better was achieved by 82.8% of the post-vitrectomy eyes compared with 95.6% for the non-post-vitrectomy eyes. The absolute mean biometry prediction error for the same groups were 0.52 diopters vs 0.43 diopters, respectively. n Conclusion: Patients undergoing cataract extraction after previous vitrectomy were younger and in majority men. Their visual and refractive outcomes were slightly inferior compared to the non-vitrectomy patients. n Purpose: The purpose of this study was to explore the frequency and outcomes of cataract surgery in eyes with previous vitrectomy. n Setting: Patients who have received cataract surgery in 15 European countries. n Design: Retrospective cross-sectional register- based study. n Methods: The European Registry of Quality Outcomes of Cataract and Refractive Surgery (EUREQUO) contains data on baseline characteristics, surgery and follow-up for cataract surgeries. Previous vitrectomy is included as a mandatory parameter in baseline characteristics. According to the protocol for EUREQUO consecutive cases should be reported by participating units. n Results: This study includes data from units in 15 European countries in the period 2008 to 2018. For this period 1,715,348 cataract extractions with follow-up How does prior vitrectomy affect cataract surgical outcomes? This large registry study appearing in the October issue of JCRS was reviewed by the New York Eye and Ear residents. —David F. Chang, MD EyeWorld Journal Club Editor Ophthalmology residents of New York Eye and Ear Infirmary of Mount Sinai Source: New York Eye and Ear Infirmary of Mount Sinai

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