Eye (London, England) · 1998
Corneal endothelial specular microscopy following deep lamellar keratoplasty with lyophilised tissue.
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Morris E, Kirwan J F, Sujatha S, Rostron C K
Аннотация
PURPOSE: To assess the corneal endothelial cell density following deep lamellar keratoplasty (DLK) carried out by air dissection and with the transplantation of lyophilised tissue.
METHOD: Contact endothelial specular microscopy was carried out on a series of patients who had undergone DLK with a minimum of 1 year post-operative follow-up.
RESULTS: Twenty eyes of 18 patients were examined at follow-up times ranging from 1 to 8 years post-operatively (mean 3 years). Indications for surgery were: keratoconus (n = 12), herpes simplex virus (HSV) keratitis (n = 1), herpes zoster ophthalmicus (HZO) keratitis (n = 1), lipid keratopathy (n = 2), lattice dystrophy (n = 1) and corneal scarring (n = 3). Overall, mean post-operative cell density was 2417 cells/mm2 (range 928-3656 cells/mm2). In eyes with pathological conditions not likely to have affected the endothelial cell density, such as keratoconus or lattice degeneration, the mean cell density was 2837 cells/mm2 (range 1030-3656 cells/mm2).
CONCLUSIONS: In patients undergoing DLK for conditions such as keratoconus the post-operative cell density was at a normal level in the majority of cases. Cell loss through this surgical intervention thus appears generally to be small. The prospect for long-term survival of these grafts is good.
METHOD: Contact endothelial specular microscopy was carried out on a series of patients who had undergone DLK with a minimum of 1 year post-operative follow-up.
RESULTS: Twenty eyes of 18 patients were examined at follow-up times ranging from 1 to 8 years post-operatively (mean 3 years). Indications for surgery were: keratoconus (n = 12), herpes simplex virus (HSV) keratitis (n = 1), herpes zoster ophthalmicus (HZO) keratitis (n = 1), lipid keratopathy (n = 2), lattice dystrophy (n = 1) and corneal scarring (n = 3). Overall, mean post-operative cell density was 2417 cells/mm2 (range 928-3656 cells/mm2). In eyes with pathological conditions not likely to have affected the endothelial cell density, such as keratoconus or lattice degeneration, the mean cell density was 2837 cells/mm2 (range 1030-3656 cells/mm2).
CONCLUSIONS: In patients undergoing DLK for conditions such as keratoconus the post-operative cell density was at a normal level in the majority of cases. Cell loss through this surgical intervention thus appears generally to be small. The prospect for long-term survival of these grafts is good.