Curative Effect Analysis Long After Penetrating Keratoplasty Of Keratoconus

Objective To analysis the curative effect long after penetrating keratoplasty of keratoconus. Methods Twenty-seven eyes of 22 patients 12 to 192 months after partial penetrating keratoplasty were examined by vision,diopter,astigmism and corneal topography, and the data was analysed. Results There were significant divergence of vision among pre-operative, 1 week after operation, before taking out stitches, after taking out stitches(P<0.01 or P<0.05). The vision of 2-5 years after PKP did not differ from that of 5-16 years after the operation (P>0.05). There was no difference of astigmism at different time(P>0.05). Two types of keratoconus after PKP have remarkable divergence of post-operative corneal topography(P<0.01). Conclusion Keratoconus after PKP has significant results and no trend of recurrent, PKP is the effective methods treating keratoconus.