Many people develop cataracts but not everyone requires surgery. Sometimes a change in glasses can improve vision or delay the need for surgery. Cataract surgery should be considered if the cataract causes symptoms bothersome to the patient. These include difficulty seeing to sew, read, drive, or watch TV, difficulty with haloes or glare at night or problems performing normal activities related to home or work. It is important to see your eye doctor as other conditions can give similar symptoms and require different treatments.