In some cases, it is not possible to shatter the lens and an alternative type of eye surgery is used, known as extracapsular cataract surgery. Here, the eye surgeon makes a larger cut in the eye to remove the whole of the lens. A replacement lens can be inserted if necessary. As the incision is wider, stitches are needed to close it, and an injection of anesthetic may be required at the start of the procedure. Recovery is longer after this type of subcapsular cataract surgery and it may be necessary to wear an eye patch following the operation.