**1. Introduction**

Pars plana vitrectomy is a surgical technique that allows a successful treatment of many diseases of the posterior segment of the eye, such as retinal detachment, proliferative diabetic retinopathy, vitreous hemorrhage, epiretinal membrane, or macular hole, among others. The increase in vitreoretinal surgery procedures has led to a predictable and consequent increase in cataract surgery in these eyes. Therefore, the ophthalmologist must be aware of the special characteristics of this type of patient and the impact of a vitrectomized eye on cataract surgery.
