This guide explains Nd:YAG (Neodymium:Yttrium Aluminum-Garnet) laser capsulotomy, a procedure to restore vision after cataract surgery when the lens capsule becomes cloudy and thickens. It describes how this common complication can occur months to years after cataract surgery, causing blurred vision and glare. The document details the outpatient laser procedure process, including pupil dilation, anaesthetic drops, and the painless 15-minute treatment. It covers the benefits of restoring post-cataract surgery vision and discusses rare potential complications like increased eye pressure, incomplete opening, macular oedema, and retinal detachment.