Abstract
The results of a retrospective analysis of 49 eyes (40 patients) that underwent penetrating keratoplasty for keratoconus are presented. All grafts had the same size trephine for both host and donor corneas. Ninety-eight per cent of eyes achieved a post-operative visual acuity of 6/12 or better; 43% of eyes attained this level of acuity unaided, although more than half of these required spectacles or contact lenses to reach their best corrected acuity. The average post-operative spherical ametropia was -0.5 dioptre (SD 2.97 dioptres) and the average postoperative cylinder was -3.8 dioptres (SD 2.63 dioptres). Three eyes (6%) required keratorefractive surgery to reduce astigmatism. Wound integrity was satisfactory using the same (size) trephine for both host and donor, with no patient suffering a post-operative wound leak or irisprolapse. The reduction of post-operative myopia and astigmatism is discussed.
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Goble, R., Lea, S. & Falcon, M. The use of the same size host and donor trephine in penetrating keratoplasty for keratoconus. Eye 8, 311–314 (1994). https://doi.org/10.1038/eye.1994.63
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DOI: https://doi.org/10.1038/eye.1994.63