Study finds, Prior pars plana vitrectomy and its association
A Study was conducted to evaluate the risk of intraoperative complications during cataract surgery in eyes with a prior vitrectomy.

A retrospective review was done of data of all patients undergoing cataract surgery. Univariate and multivariate analysis were conducted, accounting for intra-patient correlation in subjects who underwent two cataract surgeries.

The three main outcomes of interest, zonulopathy, posterior capsule (PC) tears and dropped lens fragments, were analysed for their association with prior pars plana vitrectomy (PPV) and clinical characteristics of patients such as history of prior intravitreal injection and surgeon level of experience.

--10540 eyes of 6447 patients were included in the analysis. 371 eyes had a prior PPV.

--Eyes with a prior PPV experienced more zonulopathy during cataract surgery (adjusted OR 2.2).

--Combined phacoemulsification/PPV were significantly more likely to experience all 3 complications, and this effect was even greater for eyes with a prior PPV.

In the final analysis, every complication was rare, but the previous PPV and intraoperative zonulopathy were significantly associated. Cataract surgeons needs to be aware of the vitrectomy of a patient and hence plan an increasing risk of complications intraoperatively.