Iris manipulation, such as lysis of posterior synechiae, sphincterotomies, or pupil expansion or stretching may result in intraoperative hemorrhage and early postoperative hyphema. Surgical trauma to the iris, iris root, and ciliary body can cause significant bleeding. Hemorrhage may also originate from the angle structures when cataract surgery is combined with minimally invasive glaucoma surgery (MIGS; see also BCSC Section 10, Glaucoma). Resolution of hemorrhage may take longer if vitreous is mixed with the blood. (See the section Hyphema in Chapter 11.)
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.