The invention provides a transcorneal vision assistance device implantable in the eye of a patient. A preferred embodiment transcorneal microtelescope vision assistance device is implantable in the eye of a patient and includes a keratoprosthesis configured to replace a portion of the cornea of a patient and to secure the keratoprosthesis to a remaining front portion of the cornea. A microtelescope is carried by the keratoprosthesis for transcorneal mounting of the microtelescope.