Hey! Diving into Ophthalmology? Contact lenses are a classic high-yield topic for NEET-PG because they bridge the gap between optics and clinical pathology. Let's break down the essentials so you can nail those MCQs.

First, I'll pull up some relevant lessons that cover the basics and the clinical nuances you'll need for the exam.

Alright, let's get into the nitty-gritty. For the exam, you need to know the difference between Soft Lenses (comfortable, high water content) and Rigid Gas Permeable (RGP) lenses (better optics, great for Keratoconus).

When it comes to fitting, we look at the Base Curve (to match corneal curvature) and the Diameter. In Keratoconus, we often use the ==Three-point touch== technique (touching the apex and the periphery).

Let me find a diagram that shows how these lenses sit on the eye to make it easier to visualize.