Kakehashi A, Ishiko S, Konno S, Kado M, Akiba J, Yoshida A
Department of Ophthalmology, Nemuro City Hospital, Hokkaido, Japan.
Nippon Ganka Gakkai Zasshi. 1995 Jul;99(7):819-23.
We used a scanning laser ophthalmoscope (SLO) to attempt better visualization of the posterior vitreous than conventional biomicroscopy. We observed the posterior vitreous using the SLO in patients with age- or disease-related vitreous changes. We compared the results using lasers of several wavelengths. The detailed structure of the posterior hyaloid membrane, its collagen mesh structure with premacular defect, and the prepapillary glial ring were clearly visualized by direct laser illumination. Persistent attachment of the vitreous gel to the macula through the oval defect in the posterior hyaloid membrane was seen even with repeated eye rotations. Short wavelength laser was preferable to a long wavelength one for observing the posterior hyaloid membrane. Vitreous opacities were clearly visualized with all lasers as dark spots with fundus monitoring by retro illumination. Thus in vivo visualization of the posterior hyaloid membrane and vitreous gel was achieved using this new technique, which is more advantageous than the conventional biomicroscopy because of its monochromatic laser delivery system with confocal light detection.
我们使用扫描激光检眼镜（SLO）试图比传统生物显微镜更好地观察玻璃体后部。我们在患有年龄相关性或疾病相关性玻璃体变化的患者中使用SLO观察玻璃体后部。我们比较了使用几种波长激光的结果。通过直接激光照射，可以清晰地看到后玻璃体膜的详细结构、其带有黄斑前缺损的胶原网状结构以及视乳头前胶质环。即使眼睛反复转动，也能看到玻璃体凝胶通过后玻璃体膜上的椭圆形缺损持续附着于黄斑。观察后玻璃体膜时，短波长激光比长波长激光更可取。通过眼底后照法监测，所有激光都能将玻璃体混浊清晰地显示为暗点。因此，使用这项新技术可以在体内观察后玻璃体膜和玻璃体凝胶，由于其具有共焦光检测的单色激光传输系统，比传统生物显微镜更具优势。
