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Hyperopic Q-optimized algorithms: a theoretical study on factors influencing optical quality

机译:远视Q优化算法:影响光学质量的因素的理论研究

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摘要

In this work, we analyze the way in which pupil size, optical zone, and initial hyperopic level influence optical quality for hyperopic Q-optimized corneal refractive surgery. Different Q-optimized algorithms and the Munnerlyn formula were tested to analyze the optical quality of the final retinal image for initial hyperopic errors from 1D to 5D. Three optical zones (5.5, 6, and 6.5 mm) and two pupil diameters (5 and 7 mm) were considered. To evaluate optical quality, we computed the modulation transfer function (MTF) and the area under MTF (MTFa). Q-optimized values at around Q = −0.18 were found to provide the best optical quality for most of the conditions tested. This optimum final asphericity for hyperopic ablation was not depending on the degree of hyperopia corrected, the optical zone or the pupil size being this information important for clinical practice.
机译:在这项工作中,我们分析了瞳孔大小,光学区域和初始远视水平影响远视Q优化角膜屈光手术的光学质量的方式。测试了不同的Q优化算法和Munnerlyn公式,以分析从1D到5D的初始远视误差的最终视网膜图像的光学质量。考虑了三个光学区域(5.5、6和6.5毫米)和两个瞳孔直径(5和7毫米)。为了评估光学质量,我们计算了调制传递函数(MTF)和MTF下的面积(MTFa)。发现在大约Q = -0.18左右的Q优化值可为大多数测试条件提供最佳的光学质量。远视消融的最佳最终非球面度不取决于矫正远视的程度,光学区域或瞳孔大小对于临床实践而言是重要的信息。

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