This document provides an overview of cataract management, including causes, types, preoperative preparation, surgical techniques, and complications. A cataract is a cloudy area in the lens that decreases vision, with common symptoms including blurred or double vision. Causes include age, trauma, medications, and diseases. Preoperative preparation involves visual acuity testing, slit lamp examination, and imaging of the eye and lens. Surgical techniques include phacoemulsification, the most common, manual small incision surgery, extracapsular extraction, and intracapsular extraction. Potential complications are complications of anesthesia, posterior capsular tear, endophthalmitis, toxic anterior segment syndrome, and retinal detachment.