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The retrospective cohort study by a team of researchers in China included 58 cataract eyes of 54 patients with corneal astigmatism who underwent phacoemulsification and rotationally asymmetric multifocal intraocular lens implantation. Patients were treated with either an opposite clear corneal incision or a single clear corneal incision.

The multi-institutional found that a genetic variation common in people of African ancestry is linked with an increased risk of complications from diabetes, including diabetic retinopathy, which has previously been linked to genetic variations called single nucleotide polymorphisms, or SNPs, but these associations have been studied primarily in individuals of European and Asian ancestry.