Polunin G S, Kurenkov V V, Makarov I A, Polunina E G
Vestn Oftalmol. 1998 Sep-Oct;114(5):19-21.
Video images of the cornea in photorefraction keratectomy (PFK) are analyzed by computer-aided microdensitometric analysis of televideo images of the eye. Optic density of various layers of the cornea and fluorescein penetration through the cornea were assessed in patients with myopia (235 eyes) and hypermetropia (65 eyes) before the after PFK. PFK was carried out by Nidek excimer laser (Japan). Analysis was carried out with consideration for the degree of emmetropia and patients' ages. Corneal transparency and index of fluorescein penetration through the cornea correlated with patient's age and emmetropia. Computer-aided microdensitometric analysis of televideo images of the eye earlier detects changes in the cornea than routine methods. The authors discuss the probability of assessing corneal transparency for selection of patients for PFK.
通过对眼部电视视频图像进行计算机辅助显微密度分析，来分析准分子原位角膜磨镶术（PFK）中角膜的视频图像。在近视患者（235只眼）和远视患者（65只眼）进行PFK手术前后，评估角膜各层的光密度以及荧光素透过角膜的情况。PFK手术采用日本尼德克准分子激光进行。分析时考虑了正视程度和患者年龄。角膜透明度和荧光素透过角膜的指数与患者年龄和正视程度相关。与常规方法相比，对眼部电视视频图像进行计算机辅助显微密度分析能更早检测到角膜的变化。作者讨论了通过评估角膜透明度来选择适合进行PFK手术患者的可能性。
