The artificial cornea (keratoprosthesis) is indicated in severe ocular diseases not amendable by means of a corneal transplant. In order significantly to reduce the number of the failures due to the epitheIization of keratoprosthesis implants, an improved device with a Dacron haptic part has been developed. The light (LM) and scanning electron microscopy (SEM) observations showed that the Dacron felt is ingrown by ocular tissues, in vitro and in vivo. Fibrous connective tissue stops the epithelial proliferation around the prosthesis by contact inhibition, thus avoiding its encapsulation and/or extrusion. These results may be predictive of the new keratoprosthesis reliability.