[Evaluation of penetrating keratoplasty for the treatment of keratoconus].

22 cases (26 eyes) of keratoconus were performed penetrating keratoplasty and followed up 0.5-5 years. The disease was effectively controlled. The rate of graft transparency was 100%, and the immune rejection rate was 7.7%. Corrected vision was 0.4 or better in 23 cases after the operation. The authors regard keratoplasty the best choice for treatment of keratoconus.