[Suture technic in perforating keratoplasty and postoperative astigmatism]

The authors evaluate postoperative vision, value of astigmatism and keratometry in 25 patients operated in 1992 by perforating keratoplasty, incl. 11 where the disc was fixed by interrupted stitches and 14 by continuous diagonal stitches. After evaluation of the influence of interrupted stitches and continuous diagonal stitches on postoperative astigmatism in perforating keratoplasty the authors recommend the use of diagonal suture. The reason is in the first place the uniform spreading and good adaptation of the transplanted cornea, as well as slighter traumatization and easier removal of stitches. An important role is played also by the larger number of measurable radii of the corneal curvature with regard to possible postoperative correction of astigmatism either by added stitches or differentiated adjustment of the tension of the continuous stitch.