J Cataract Refract Surg. 2023 Feb 1. doi: 10.1097/j.jcrs.0000000000001156. Online ahead of print.
ABSTRACT
PURPOSE: To determine the incidence of anterior vitreous detachment (AVD) and retrolental material occurrence in cataract surgery, determine the influence of surgical factors on it, and confirm the source of the material.
SETTING: Affiliated Hospital of Nantong University, Jiangsu Province, China.
DESIGN: This was a prospective, single-center study.
METHODS: Age, sex, eye condition, nuclear sclerosis grade, ultrasonic time, average longitudinal power, cumulative dissipated energy (CDE), total aspiration time, and estimated fluid usage were recorded for each patient. Retrolental anatomy was observed before and during surgery using real-time optical coherence tomography integrated into a microscope. The eyes with AVD were carefully observed and recorded during illumination with an optical fiber. Retrolental material was stained using immunohistochemistry.
RESULTS: This study included 205 eyes from 205 patients. Spontaneous AVD was found in five cases. Intraoperatively, AVD was identified in 115 eyes (56.1%). Retrolental material presence was observed in 75 eyes (36.6%). A logistic regression model showed that CDE and aspiration time had statistically significant effect on AVD (P<0.05, 95%OR:1.011∼1.558; P<0.05, 95%OR:1.026∼1.051), and CDE was positively correlated with retrolental material occurrence (P<0.05, 95%OR:1.052∼1.534). Samples from five cases expressed large amounts of crystallin alpha and beta proteins.
CONCLUSION: Spontaneous AVD is rare in phakic eyes. There was a marked increase in AVD during surgery, with retrolental material occurring in more than a third of cases. Higher CDE and longer total aspiration time were risk factors for AVD. Immunohistochemistry revealed that most of the retrolental materials were lens fragments.
PMID:36745848 | DOI:10.1097/j.jcrs.0000000000001156
