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Keratoprosthesis is the only solution to corneal blindness that cannot be treated by penetrating keratoplasty. Legeais et al¹ and Legeais and Renard² have reported clinical results with second-generation colonizable keratoprosthesis (Kpro) in the past 3 years. Some of the clinical failures were due to endophthalmitis, retroprosthetic membrane, or cataract formation. The second-generation optic (artificial cornea) of keratoprosthesis (Biokpro II; FCI, Paris, France) has a refractive power (42.2 diopters), thickness (550 µm), and diameter (7 mm) much like those of the human cornea.² It should therefore make intraocular surgery possible.² The use of biocompatible material (polytetrafluoroethylene) that can be colonized by host keratocytes also helps to integrate the alloplastic material of the haptic into the recipient cornea.^3-4 The optic-haptic junction is formed by the chemical fusion of the optic (soft polydimethylsiloxane copolymer coated with polyvinylpyrrolidone) with its supporting colonizable skirt (polytetrafluoroethylene). These features should provide a better mechanical stability and avoid . . . [Full Text of this Article]

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