Table 4. Types and rates of complications after keratoprosthesis.

Complications	Keratoprosthesis type
	Open-work 1972–1974 (70 eyes)	New nondismountable 1975–1977 (157 eyes)	Universal dismountable
			1978–1994 (543 eyes)	1995–2010 (250 eyes)
Aseptic necrosis of cornea	28.6	20.4	8.3	2.9
Extrusion of keratoprosthesis	17.1	9.5	3.5	1.5
Phthisis bulbi (uveitis, aqueous humor filtration)	7.1	5.7	2.4
Endophthalmitis	1.4	5.7	1.5	0.5
Retinal detachment	1.4	2.5	1.1	0.5
Retrokeratoprosthesis membrane	45.7	14.6	13.6	16.5
Overgrowth of corneal/conjunctival (oral mucosa) epithelium over keratoprosthesis optic cylinder	20.0	19.7	24.9	18.3
Secondary glaucoma	5.7	1.3	1.3	1.5

%