Blankenstein M F, Zuclich J, Allen R G, Davis H, Thomas S J, Harrison R F
Invest Ophthalmol Vis Sci. 1986 Jul;27(7):1176-9.
Thresholds for retinal vitreal and contained hemorrhages were determined for 1064 nm laser light at 30-nsec and 4-nsec pulsewidths. Rhesus monkeys received graded exposures from a neodymium-yag laser onto either the macular or extramacular region of the retina. Contained hemorrhages appeared as concentric ring structures with white punctate centers. The vitreal hemorrhage was characterized by the presence of choroidal blood in the vitreal chamber at the exposure site. The 30-nsec contained hemorrhage threshold (ED50) was 1.7 mJ on the macula and 2.1 mJ for an extramacular exposure. The 30-nsec vitreal hemorrhage macular threshold was 2.3 mJ, and the extramacular threshold was 6.6 mJ. The threshold for the 4-nsec pulsewidths to produce a hemorrhage (vitreal or contained) on the retina (macula or extramacular) was 340 microJ.
测定了1064纳米激光在30纳秒和4纳秒脉冲宽度下视网膜玻璃体及其中所含出血的阈值。恒河猴接受了来自钕钇铝石榴石激光对视网膜黄斑或黄斑外区域的分级照射。所含出血表现为带有白色点状中心的同心环结构。玻璃体出血的特征是在照射部位的玻璃体腔中存在脉络膜血液。30纳秒所含出血阈值（ED50）在黄斑处为1.7毫焦，黄斑外照射为2.1毫焦。30纳秒玻璃体出血黄斑阈值为2.3毫焦，黄斑外阈值为6.6毫焦。4纳秒脉冲宽度在视网膜（黄斑或黄斑外）产生出血（玻璃体或所含）的阈值为340微焦。
