Former Duke Glaucoma Fellow and currently Assist Professor of Ophthalmology at the Kellogg Eye Center in Ann Arbor, Dr. Josh Stein identified Cataract surgery continues to improve with further reduction in severe complications.  The rates of sight-threatening adverse events after cataract surgery decreased between 1994 and 2006, according to a retrospective study. Joshua D. Stein and colleagues reviewed the records of 221,591 Medicare beneficiaries who underwent cataract surgery between 1994 and 2006, divided into three cohorts based on the year of their initial cataract surgery: 1994-1995, 1999-2000, or 2005-2006. One-year rates of post-op severe adverse events, such as endophthalmitis, suprachoroidal hemorrhage, and retinal detachment, were established for each of the groups. Overall, 1,086 (0.5%) had at least one severe post-op complication. After adjusting for confounders, the researchers found that patients in the 1994-1995 cohort had a 21% increased hazard of being diagnosed with a severe post-op complication compared to the 2005-2006 group. Those who underwent cataract surgery during the 1999-2000 period had a 20% increased hazard of experiencing a severe complication relative to the 2005-2006 group. The risk factors associated with severe adverse events included prior diagnosis of proliferative diabetic retinopathy and cataract surgery combined with another intraocular surgical procedure on the same day. The patients whose procedures were done by surgeons with the case mix least likely to develop a severe adverse event had a 48% reduced hazard of a severe adverse event, compared to those whose surgery was performed by surgeons with the case mix most prone to such events. The study is published in Ophthalmology.