Question

Cataracts, the medical condition where the lens of the eye becomes cloudy, are a leading cause of blindness. Describe how developing a cataract would change thepath of light through the eye.

Short answer

A cataract prevents your retina from receiving a clearly defined image by scattering and blocking light as it travels through the lens.

Step-by-step solution

Step 1. Introduction

A clouded lens is a cataract. Your eye's pigmented portion is in front of the lens (iris). The retina, the light-sensitive membrane in the eye that works like the film in a camera, receives clean, sharp images from the lens by focusing light that enters your eye.

Step 2. Detailed explanation

The lenses in your eyes get thicker, less flexible, and less transparent as you get older. Proteins and fibres within the lenses deteriorate and clump together as a result of ageing and other medical disorders, clouding the lenses.