[Further studies on the functional decompensation of corneal endothelial cells].
30 cases of corneal endothelial decompensation occurred in 241 transparent grafts of penetrating keratoplasty during a 5-year follow-up with the specular photomicroscope. The study indicated that the critical cell density for corneal endothelial decompensation was 786/mm2; the critical cell dimension as represented by the sum of mean maximal and minimal diagonal was 35.43 microns; and the critical difference between the mean maximal and minimal diagonal was 14.70 microns. When these three criteria all approximated the critical values, the endothelium was regarded as in a predecompensation state that heralded impending endothelial decompensation. Therefore, these values may be regarded as a reference standard for diagnosing early stage endothelial decompensation.
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D002452:Cell Count; D016039:Corneal Transplantation; D004728:Endothelium, Corneal / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D011184:Postoperative Period