Goble R R, Hardman Lea S J, Falcon M G
South Wing Eye Department, St Thomas' Hospital, London, UK.
Eye (Lond). 1994;8 ( Pt 3):311-4. doi: 10.1038/eye.1994.63.
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 post-operative 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 iris prolapse. The reduction of post-operative myopia and astigmatism is discussed.
本文呈现了对40例患者的49只眼睛行圆锥角膜穿透性角膜移植术的回顾性分析结果。所有移植片的植床和供体角膜均采用相同大小的环钻。98%的术眼术后视力达到6/12或更好；43%的术眼无需辅助即可达到该视力水平，尽管其中一半以上的患者需要佩戴眼镜或隐形眼镜才能达到最佳矫正视力。术后平均球镜屈光不正为-0.5屈光度（标准差2.97屈光度），平均柱镜为-3.8屈光度（标准差2.63屈光度）。3只眼（6%）需要行角膜屈光手术以减少散光。使用相同大小的环钻制作植床和供体角膜，伤口完整性良好，无患者发生术后伤口渗漏或虹膜脱出。文中讨论了术后近视和散光的降低情况。
