Florakis G J, Jewelewicz D A, Fan N I, Trokel S L
Edward S. Harkness Eye Institute, Columbia University, New York, NY, USA.
J Refract Surg. 1996 Feb;12(2):S311-2. doi: 10.3928/1081-597X-19960201-30.
We previously described a simple test which evaluates image degradation in post-excimer laser (PRK) patients under scotopic conditions. After refractive surgery, corneal haze, ablation zone decentration, ablation zone/pupillary diameter disparity, and under-correction each result in a characteristic pattern on the Night Vision Recording Chart.
Using the same method, further studies evaluated night vision image degradation in 118 un-operated emmetropic, myopic, hyperopic, and astigmatic eyes and in 26 contact lens wearers.
Scotopic image degradation increases with myopic refractive error, image displacement increases with astigmatism, and contact lens wearers have more image degradation that with spectacle correction.
Our Night Vision Recording Chart offers a simple, reproducible method to characterize image degradation under scotopic conditions.
我们之前描述了一种简单的测试方法,该方法可评估准分子激光原位角膜磨镶术(PRK)患者在暗视条件下的图像退化情况。屈光手术后,角膜 haze、消融区偏心、消融区/瞳孔直径差异以及欠矫正各自在夜视记录图上产生特征性图案。
使用相同方法,进一步研究评估了118只未手术的正视、近视、远视和散光眼以及26名隐形眼镜佩戴者的夜视图像退化情况。
暗视图像退化随近视屈光不正增加而增加,图像位移随散光增加而增加,且隐形眼镜佩戴者的图像退化比戴眼镜矫正者更多。
我们的夜视记录图提供了一种简单、可重复的方法来表征暗视条件下的图像退化情况。