Original articleComparison of Deep Lamellar Keratoplasty and Penetrating Keratoplasty for Lattice and Macular Corneal Dystrophies
Section snippets
Methods
An age-matched case controlled study was undertaken whereby clinical data were retrieved from computerized databases of patients with corneal stromal dystrophy having received DLKP (41 eyes) or PKP (43 eyes) at the Department of Ophthalmology, Tokyo Dental College, Chiba, Japan, between 1994 and 2004. These data were updated from examination of clinical records to obtain pathologic results, surgical details, and postoperative clinical course including best-corrected visual acuity (BCVA),
Graft clarity
The results of graft survival are summarized in Figure 1. At the most recent visit, 39 grafts (95.1%) were clear in the DLKP group, and 42 grafts (97.7%) were clear in the PKP group. In the DLKP group, all corneal grafts with LCD were clear until last follow-up, whereas two of 10 with MCD developed endothelial decompensation; one failed at 1.5 years without intra-/postoperative complications, the other failed at six years with microperforation treated by air injection in the anterior chamber.
Discussion
In this comparative study of DLKP vs PKP in corneal stromal dystrophy, both procedures provided similar visual outcomes and graft survival, which suggested that postoperative outcomes were successful in both procedures. However, there were several differences in the nature of the complications. In the DLKP group, most of the complications occurred intraoperatively or in the early phase, but did not influence final graft clarity because of adequate recovery. Although microperforation of Descemet
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