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Br J Ophthalmol 2001;85:788-791 doi:10.1136/bjo.85.7.788
  • Scientific correspondence

Deep lamellar keratoplasty with lyophilised tissue in the management of keratoconus

  1. Andrew G A Coombes,
  2. James F Kirwan,
  3. Chad K Rostron
  1. Department of Ophthalmology, St George's Hospital, London, UK
  1. Mr C K Rostron, Department of Ophthalmology, St George's Hospital, Blackshaw Road, London SW17 0QT, UKrostron{at}sghms.ac.uk
  • Accepted 27 February 2001

Abstract

AIMS Data are presented on the use of deep lamellar keratoplasty (DLK) using lyophilised donor corneal tissue, in the management of patients with keratoconus (KC).

METHOD The results of DLK on 44 eyes (42 patients) are reported. The mean patient age was 29.8 years (range 10–56). Mean follow up was 25 months (range 6–100). In seven patients with mental handicap or severe mental illness, the collection of acuity and refractive data was limited.

RESULTS Perforation of Descemet's membrane (DM) occurred in nine cases (20%). A double anterior chamber formed in five cases, which resolved spontaneously in three patients. Persistent epithelial defects occurred in two cases, one of which necessitated replacement of the graft. The median postoperative uncorrected visual acuity was 6/36. The median corrected postoperative acuity was 6/9. Those with more than 1 year of follow up (n=25) had a significantly better acuity (p=0.015). This group achieved 6/12 or better in 80% (n=20) and 6/6 or better in 40% (n=10). The mean postoperative spherical error was +0.28 (SD 3.49) dioptres (D). The mean refractive cylinder was 3.85 (1.87) D.

CONCLUSION This detailed retrospective study of DLK for the treatment of patients with KC, with an average follow up of 2 years, highlights the advantages and disadvantages of this technique.

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