硬性透气性隐形眼镜(RGP)矫正圆锥角膜的疗效分析

目的: 评价硬性透气性隐形眼镜( RGP) 矫正圆锥角膜屈光异常的疗效。方法: 选择我院 2004- 05/2005- 12 收治的 25 例( 43 眼) 圆锥角膜患者配戴 RGP, 观察视力、角膜曲率、配适状况、舒适度及并发症。结果: RGP矫正视力均好于或等于框架球柱面联合镜。其中优于框架球柱面联合镜片者 37 眼( 86.0%) , 二者视力相等者 6 眼( 14.0 %) , 矫正视力低于框架球柱面联合镜者 0眼, 经统计学处理, 两者有显著性差异( P< 0.01) 。配戴RGP 6mo 时角膜曲率值没有明显变化。本组病例配适良好, 合并症少而轻。结论: 经 6mo 随访观察, RGP 对圆锥角膜的视力矫正明显优于框架眼镜, 是目前矫正圆锥角膜的非手术治疗的有效方法。

Clinical study of rigid gas-permeable lenses to correct astigmatism for keratoconus

AIM: To evaluate visual outcome and wearing times in eyes fitted with a rigid gas permeable contact lenses and to assess the role of these lenses in therapeutic contact lens practice.METHODS: Patients fitted with RGP from May 2004 to December 2005 were retrospectively reviewed. Ocular diagnosis,flat and steep curvatures by corneal topography. The data included initial base curve, power, and the number of changes made in parameters during the follow-up. The outcome data included visual acuity and the duration of follow-up and lens wear. Complications and complaints were also noted.RESULTS: Forty-Three eyes of 25 patients had keratoconus were reviewed. The mean age of patients was 19.88 ±3.11years. 26 (60.5%)eyes achieved 20/20 visual acuity;15(34.9%) eyes achieved 20/25 to 20/40; and 1 (2.3%) eyes achieved 20/50 to 20/70. 37 (86.0%) eyes achieved visual improvement. No infection or neovascularization was noted; a corneal abrasion occurred in one eye.CONCLUSION: RGP may be a better alternative in selected patients with keratoconus rather than penetrating keratoplasty.