Anterior corneal surface irregularity after Descemet-stripping endothelial keratoplasty for XXXX .

@entity1 @entity2008 @entity267 @entity2372
PURPOSE: To evaluate irregularity of the anterior @entity267 before and after Descemet stripping endothelial keratoplasty (DSEK) for @entity2372 and its effect on visual acuity. METHODS: Corneal data were acquired using a topographic unit before and up to 12 months after DSEK. Anterior corneal elevation data were decomposed into a set of Zernike polynomials up to the 8th order within a 6.0-mm diameter region. Total @entity2008 ( @entity2008 ) and root mean square from the 3rd to 8th order were calculated. The effects of anterior surface irregularity on visual acuity were evaluated. RESULTS: This clinical study comprised 20 consecutive eyes of 20 @entity1 with @entity2372 . The mean corrected distance visual acuity (CDVA) was 1.00    0.12 logMAR (SD) preoperatively and 0.24    0.16 logMAR 12 months postoperatively. Before DSEK, corneas with @entity2372 had higher total @entity2008 compared with those in controls (p<0.05). There were no significant differences in anterior surface @entity2008 between preoperatively and 12 months (p>0.05). CONCLUSIONS: Postoperative CDVA correlated with irregularity of the corneal anterior surface. Corneal anterior @entity2008 are higher in @entity1 with @entity2372 than in controls, and remain higher through 12 months after DSEK. In addition to corneal transparency, regularity of the corneal anterior surface is an important factor in visual acuity after DSEK.
