Jupiter D G, Katz H R
The Krieger Eye Institute, Sinai Hospital Baltimore, MD 21215, USA.
CLAO J. 2000 Jan;26(1):14-7.
The purpose of this study was to measure improvement in best corrected visual acuity with rigid gas permeable (RGP) contact lenses compared to best corrected spectacle visual acuity for patients with irregular astigmatism.
We compared best corrected visual acuity obtained with spectacle correction to best corrected visual acuity obtained with rigid gas permeable contact lenses for forty-eight eyes of 29 patients with irregular astigmatism.
Patients with 20/20 spectacle visual acuity achieved, on average, no improvement in visual acuity with RGP contact lenses. Patients with 20/25-20/30 spectacle visual acuity achieved a one line average improvement. Patients with 20/40 spectacle visual acuity achieved a two line average improvement. Patients with 20/50-20/200 spectacle visual acuity achieved a four line average improvement and patients with spectacle visual acuity of 20/400, a six line average improvement.
RGP contact lenses can provide a significant improvement in visual acuity compared to spectacle correction for patients with irregular astigmatism.
本研究的目的是测量与最佳矫正眼镜视力相比，硬性透气性（RGP）隐形眼镜对不规则散光患者最佳矫正视力的改善情况。
我们比较了29例不规则散光患者的48只眼睛使用眼镜矫正获得的最佳矫正视力与使用硬性透气性隐形眼镜获得的最佳矫正视力。
视力为20/20的患者使用RGP隐形眼镜后，平均视力没有改善。视力为20/25 - 20/30的患者平均提高了一行视力。视力为20/40的患者平均提高了两行视力。视力为20/50 - 20/200的患者平均提高了四行视力，而视力为20/400的患者平均提高了六行视力。
对于不规则散光患者，与眼镜矫正相比，RGP隐形眼镜可显著提高视力。
