Grunwald J E, Sinclair S H, Crandall A S, Riva C E
Ophthalmology. 1981 Oct;88(10):1054-7. doi: 10.1016/s0161-6420(81)80036-x.
The blue field entoptic phenomenon allows the perception of leukocytes moving in the retinal capillaries of one's own retina. This phenomenon is not affected by media opacities provided that enough blue light reaches the retina. The phenomenon was investigated in 63 amblyopic patients to determine if the perception of the leukocytes in the amblyopic eye differs from that in the good eye. A difference in perception would provide a means of assessing amblyopic in eyes with opaque media. Ninety-four percent of the amblyopic eyes perceived less sharp particles, 83% perceived fewer particles and 60% perceived slower particles than in the good eyes. In 86% of the amblyopic eyes, the tails were shorter than in the good eyes or absent entirely. The degree of amblyopia correlated with the difference in the number of leukocytes observed in each eye. No differences in the perception of leukocytes were reported by 20 normal subjects.
蓝色视野内视现象能让人感知到自身视网膜毛细血管中白细胞的移动。只要有足够的蓝光到达视网膜，这种现象就不受介质混浊的影响。对63例弱视患者进行了该现象的研究，以确定弱视眼中白细胞的感知与健眼中的是否不同。感知上的差异将为评估介质混浊眼睛的弱视情况提供一种方法。与健眼相比，94%的弱视眼感知到的颗粒清晰度较低，83%感知到的颗粒数量较少，60%感知到的颗粒移动较慢。86%的弱视眼中，白细胞的“尾巴”比健眼中的短，或者完全没有。弱视程度与每只眼中观察到的白细胞数量差异相关。20名正常受试者报告在白细胞感知方面没有差异。
