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首页> 外文期刊>Journal of refractive surgery >Optical quality and visual discrimination capacity after myopic LASIK with a standard and aspheric ablation profile.
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Optical quality and visual discrimination capacity after myopic LASIK with a standard and aspheric ablation profile.

机译：具有标准和非球面消融轮廓的近视LASIK后的光学质量和视觉辨别能力。

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PURPOSE: To determine whether the eye's optical quality is correlated to the visual discrimination capacity of patients treated with LASIK using two different ablation algorithms. METHODS: Visual discrimination was evaluated by the disturbance index under low illumination (Halo v1.0 software, Laboratory of Vision Sciences and Applications) in two groups of patients who underwent LASIK with two different ablation algorithms using the Allegretto Wave Eye-Q 400 Hz laser (WaveLight AG). In the first group (standard group; 30 eyes), corneal ablations were performed with the standard algorithm (preoperative spherical equivalent refraction -3.20+/-1.70 diopters [D]). In the second group (Q-optimized group; 38 eyes; spherical equivalent refraction -3.40+/-1.90 D), the ablations were made with the Q-optimized (F-CAT) algorithm. Optical quality of the eye was calculated by the Strehl ratio measured with a double-pass device (OQAS, Visiometrics SL). RESULTS: After LASIK, both the Strehl ratio as well as visual discrimination capacity diminished in both groups, although the changes were significantly greater in the standard group than in the Q-optimized group. CONCLUSIONS: A high correlation was found between the Strehl ratio and the disturbance index in patients who underwent LASIK, regardless of the ablation algorithm applied. Optical and visual deterioration were greater after standard ablation.
机译：目的：使用两种不同的消融算法，确定眼睛的光学质量是否与接受LASIK治疗的患者的视觉辨别能力有关。方法：通过低照度下的干扰指数（Halo v1.0软件，视觉科学与应用实验室）评估了两组患者使用Allegretto Wave Eye-Q 400 Hz激光通过两种不同的消融算法进行LASIK手术后的视觉辨别力（WaveLight AG）。在第一组（标准组; 30只眼）中，采用标准算法（术前球面等效屈光度-3.20 +/- 1.70屈光度[D]）进行角膜消融术。在第二组（Q优化组; 38眼;球面等效屈光度-3.40 +/- 1.90 D）中，消融采用Q优化（F-CAT）算法进行。眼睛的光学质量是通过使用双通道设备（OQAS，Visiometrics SL）测量的斯特列尔比来计算的。结果：LASIK术后，两组的斯特列尔比和视觉辨别能力均下降，尽管标准组的变化明显大于Q优化组。结论：无论采用何种消融算法，接受LASIK手术的患者的Strehl比率与干扰指数之间均存在高度相关性。标准消融后的视力和视觉恶化更大。

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