Efficacy of radial keratotomy in the optical rehabilitation of mild to moderate keratoconus cases
Citation
Koçak, İ., Aydın, A., Kaya, F., Baybora, H. ve Bozkurt, S. (2015). Efficacy of radial keratotomy in the optical rehabilitation of mild to moderate keratoconus cases. International Eye Science, 15(4), 572-576. https://dx.doi.org/10.3980/j.issn.1672-5123.2015.4.02Abstract
AIM: To investigate the efficacy of radial keratotomy (RK) for the optical and visual rehabilitation of mild to moderate keratoconus. METHODS: Thirty-one eyes of 22 keratoconus patients with at least 12 mo follow-up were recruited and reviewed retrospectively. Uncorrected visual acuity (UCVA), best spectacle corrected visual acuity (BSCVA), autorefractometer values, keratometric values, corneal irregularity indexes, and complications were analyzed pre- and post-operatively. RESULTS: At the last follow-up visit, mean UVCA (logMAR) improved significantly from 0.86±0.34 to 0.30±0.29 (P<0.0001), and mean BSCVA (logMAR) improved from 0.47±0.21 to 0.17±0.23, (P<0.0001). Mean keratometric values decreased from 48.69±3.68 to 44.33±3.09 diopters (P<0.0001). Mean spherical equivalent measured by autorefractometer was also improved significantly from -5.61±2.85 to -2.29±1.95 at the last follow-up visit (P<0.0001). Central corneal thickness and corneal irregularity index of 3 mm and 5 mm zones did not change during the overall follow-up time. No serious intraoperative or postoperative complication was observed. CONCLUSION: RK is assessed as an effective treatment method for the optical and visual rehabilitation of mild to moderate keratoconus cases, according to our results in a selected group of keratoconus patients. 摘要 目的:探讨放射状角膜切开术在轻中度圆锥角膜治疗中光 学和视力康复的效果。 方法:回顾性分析应用放射状角膜切开术治疗圆锥角膜的 病例 22 例 31 眼并进行了至少 12mo 的随访。 测量并分析 术前术后裸眼视力,最佳矫正视力,自动屈光计值,角膜曲 率,角膜不规则指数以及并发症。 结果:在最后一次随访中,平均裸眼视力(logMAR)由 0. 86依 0. 34 显著提升至 0. 30依0. 29 (P<0. 0001),平均最佳矫正 视力由 0. 47依0. 21 提升至 0. 17依0. 23(P<0. 0001)。 平均 角膜曲率由 48. 69 依 3. 68D 降低至 44. 33 依 3. 09D ( P < 0郾 0001)。 自动屈光计测得平均等效球镜值由-5. 61 依2. 85D 显著提升至-2. 29依1. 95D(P<0郾 0001)。 在整个随访 过程中,中央角膜厚度和 3mm,5mm 区域的角膜不规则指 数均无变化。 术中和术后没有观察到严重并发症。 结论:在本组病例中,放射状角膜切开术是轻中度圆锥角 膜视觉康复的有效治疗方法.
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International Eye ScienceVolume
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