The role of intraocular video endoscopic fundal examination before keratoprosthesis surgery

摘要

A keratoprosthesis is an artificial cornea. While a temporary KPro is used for performing vitreoretinal surgery, permanent KPros are used for visual rehabilitation of corneal blindness not amenable to conventional corneal grafting. Currently, there are 2 mainstream devices for 2 different groups, of patients. For "wet blinking eyes" with an adequate tear film, fully present and functioning lids, and no keratin on the ocular surface, a Boston Type 1 KPro could be considered. Typical indications include multiple previous failed corneal grafts, vascularized corneas, aniridia, and, more recently, Peter's anomaly. For dry eyes and eyes with absent lids, the osteo-odonto-keratoprosthesis (OOKP), which uses the patient's own canine tooth root and surrounding jaw bone to frame a plastic optical cylinder, is the procedure of choice.