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目的 应用光学相干断层扫描对正常眼黄斑区视网膜神经上皮厚度进行分区测定。方法 对确认为正常眼 4 0眼 ,以黄斑部为中心进行放射状扫描 ,扫描线之间的夹角为 30° ,采集 6幅黄斑区图像 ,并使用随机软件测定 9个分区的视网膜神经上皮的平均厚度。同时测定出黄斑部中心凹神经上皮的厚度。结果 黄斑中心凹视网膜神经上皮的厚度为 16 0 μm +15 μm ,中心凹周围半经 5 0 0 μm神经上皮的平均厚度为 184 μm +13μm ,其他分区视网膜神经上皮的平均厚度与国外类似报道相符。结论 OCT不但能够对视网膜神经上皮层厚度进行精确的测定 ,而且能够对黄斑部进行分区测定 ,这些结果有助于对黄斑区病变范围和病变程度的了解。
Objective To determine the thickness of retinal nerve epithelium in macula with normal eyes by optical coherence tomography. Methods Forty-four eyes were confirmed as normal eyes. Radiographic scanning was performed with the macular as the center. The angle between the scan lines was 30 °. Six macular images were collected and the retinal neuroepithelial The average thickness. At the same time, the thickness of the foveal nerve epithelium in the macula was determined. Results The thickness of foveal retinal neuroepithelial foveal was 160 μm +15 μm, the median foveal half 500 μm neural epithelium around fovea was 184 μm + 13 μm, and the average thickness of retinal neuroepithelium in other subareas corresponded with similar reports in foreign countries . Conclusions OCT can not only accurately measure the thickness of retinal nerve epithelium, but also determine the macular demarcation. These results can help to understand the extent of macular degeneration and lesion degree.