Ozawa Nobuhiro, Mori Kiwako, Katada Yusaku, Tsubota Kazuo, Kurihara Toshihide
Laboratory of Photobiology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Life (Basel). 2020 Dec 2;10(12):323. doi: 10.3390/life10120323.
Ultra-widefield fundus imaging is widely used for obtaining wide angle images of the retina in one single image. Although it has a potential to obtain a wide area of retinal photographs, images are often obstructed by eyelashes or eye lids. In this study, we used a newly invented eyelid clamper, which can keep an eye open without touching conjunctiva or lid margin, to assess the efficacy in clinical use by comparing with conventional tape fixation.
Ultra-widefield fundus images were captured with an ultra-widefield imaging system in 19 patients who visited to the outpatient clinic of Department of Ophthalmology, Keio University Hospital with the eyelid clamper or a conventional tape fixation. The area of imaged retinas was outlined and quantified with pixels. After obtaining images, patients answered a questionnaire.
The average number of pixels in total areas with the eyelid clamper or with tape fixation were 4.31 ± 0.35 and 4.32 ± 0.34 mega pixels, respectively, showing no significant difference between the groups ( = 0.889). The average face pain scale of the eyelid clamper was 1.13 on a scale of 0 to 5. The number of patients who did not feel any pain was nine (47.4%).
The eyelid clamper can be applied in clinical setting and can better support obtaining sufficiently wide fundus images compared to a conventional tape fixation.
超广角眼底成像被广泛用于在一张图像中获取视网膜的广角图像。尽管它有潜力获取大面积的视网膜照片，但图像常常被睫毛或眼睑遮挡。在本研究中，我们使用了一种新发明的眼睑夹，其可在不接触结膜或睑缘的情况下保持眼睛睁开，通过与传统胶带固定法比较来评估其临床应用效果。
在庆应义塾大学医院眼科门诊就诊的19例患者中，使用超广角成像系统，分别用眼睑夹或传统胶带固定法拍摄超广角眼底图像。用像素勾勒并量化成像视网膜的面积。获取图像后，患者回答一份问卷。
使用眼睑夹或胶带固定法时，总面积的平均像素数分别为4.31±0.35和4.32±0.34兆像素，两组之间无显著差异（P=0.889）。眼睑夹的平均面部疼痛评分为1.13（0至5分制）。没有感到任何疼痛的患者有9例（47.4%）。
与传统胶带固定法相比，眼睑夹可应用于临床环境，并且能更好地辅助获取足够宽的眼底图像。
