Barry C J
Lions Eye Institute, Nedlands, Perth, Western Australia.
J Audiov Media Med. 1992 Oct;15(4):148-54. doi: 10.3109/17453059209088462.
Optic disc and retinal nerve fibre layer (RNFL) photography have been an integral part of the routine screening of glaucoma patients, ocular hypertensives and glaucoma suspects in Perth since 1979. During this period 60 degrees, 40 degrees, 30 degrees and 8 degrees angles of view were examined for potential use in RNFL photography. The degree of dilation and media opacity is highly variable in glaucoma patients because of the age group involved and the miotic therapy. It was found that the 30 degree angle of view gave the most consistent results for routine RNFL photography. Ocular hypertensives tended to be of a lower mean age and 40 degrees wide angle photography was possible but required two different photographic techniques and was not continued. Both 60 degrees and high-magnification RNFL photography are currently used only with selected patients for teaching and demonstration. A modified Hasselblad 120 roll film camera was used for high-resolution RNFL photography. The Hasselblad adaptors, high-resolution results and comparisons with wide-angle RNFL photographs are illustrated in this paper.
自1979年以来，视盘和视网膜神经纤维层（RNFL）摄影一直是珀斯青光眼患者、高眼压症患者和青光眼疑似患者常规筛查的重要组成部分。在此期间，对视场角为60度、40度、30度和8度的情况进行了研究，以探讨其在RNFL摄影中的潜在用途。由于所涉及的年龄组和缩瞳治疗，青光眼患者的散瞳程度和介质混浊程度差异很大。结果发现，30度视场角在常规RNFL摄影中能给出最一致的结果。高眼压症患者的平均年龄往往较低，40度广角摄影是可行的，但需要两种不同的摄影技术，因此没有继续采用。目前，60度和高倍放大的RNFL摄影仅用于特定患者的教学和演示。一台改良的哈苏120胶卷相机用于高分辨率RNFL摄影。本文展示了哈苏相机转接器、高分辨率结果以及与广角RNFL照片的对比。
