Cataracts People with learning disabilities are more likely to get a cataract and are less likely to be able to say they have a sight problem. Inside your eye is a lens which helps you see. Having a cloudy lens is called a cataract and it stops you seeing clearly. An eye test will tell you if you have a cataract and to correct it you will need an operation at a hospital. Download SeeAbility's easy read factsheet which will help you to understand what a cataract is and how it can affect your vision: Having a cataract