Hoffmann F, Harnisch J P, Strunz V, Bunte M, Gross U M, Männer K, Brömer H, Deutscher K
Klin Monbl Augenheilkd. 1978 Dec;173(6):747-55.
A high percentage of plastic keratoprosthesis is rejected again or intraocular infections occur because there is a cleft-like open junction between anterior chamber and lacrimal film. Only the ketratoprosthesis by Strampelli (1970) settles firmly in the cornea without the above risks, because the autogenous transplanted bone unites well with the grafted labial mucosa. 5 years of investigation have confirmed that glass ceramic Ceravital unites firmly with bones (Blencke et al. 1973, Strunz et al. 1977c, Bunte et al. 1977). For the osteo-keramo-keratoprosthesis Ceravital is used the same location as Dentin for the osteo-odonto-keratoprosthesis. The new surgical method has the advantage that 1. toothless patients can be operated, 2. the anterior chamber cannot flatten because the ceramic disk has the same shape as the corneal surface, and 3. broader optical cylinders can be used, by which a widening of the visual field is achieved.
由于前房与泪膜之间存在裂隙样开放连接,很大比例的塑料角膜假体被再次排斥或发生眼内感染。只有斯特兰佩利(1970年)的角膜假体能在角膜中稳固安置而无上述风险,因为自体移植骨与移植的唇黏膜结合良好。5年的研究证实玻璃陶瓷Ceravital与骨牢固结合(布伦克等人,1973年;施特伦茨等人,1977年c;邦特等人,1977年)。对于骨-陶瓷-角膜假体,Ceravital的使用位置与用于骨-牙质-角膜假体的牙质相同。这种新的手术方法具有以下优点:1. 无牙患者也可进行手术;2. 由于陶瓷盘与角膜表面形状相同,前房不会变平;3. 可使用更宽的光学柱镜,从而扩大视野。