Contact lenses can be fitted on children to correct vision problems from birth defects like congenital cataracts. They are also used for therapeutic purposes like patching an eye during vision therapy. The main indications for contact lenses in children are to treat congenital cataracts, aphakia following cataract surgery, trauma, and refractive errors. They provide an alternative to glasses for activities like sports. Proper fitting is important and may require use of anesthetics to reduce stress for children.