Cataracts are largely due to ageing but can be caused or worsened by medical conditions e.g. diabetes, certain drugs e.g. corticosteroids or trauma. Rarely genetic conditions can cause cataract and some children are born with cataracts called congenital cataract. Some eye conditions can also limit the outcome of surgery e.g. if macular degeneration or glaucoma are present, so we will perform a comprehensive eye examination at your consultation prior to surgery so that you can make a fully informed decision about your care and make a fully informed choice.