Soft contact lenses can be used like a plaster or dressing for the front of the eye to cover a wound and promote healing. Some people have a recurrent ‘scab’ on the eye that keeps coming off causing pain. The contact lens can allow it to heal. Some of the dystrophies mentioned above can cause erosion as well as shape problems. There are other reasons you can end up with erosion such as advanced dry eye or ocular surface disease.