Automated detection of foveal fixation by use of retinal birefringence scanning
Automated detection of foveal fixation by use of retinal birefringence scanning
复制标题
DOI：
10.1364/ao.38.001273
复制
发表时间：
1999-03-01
期刊：
影响因子：
1.9
通讯作者：
Guyton, DL
中科院分区：
文献类型：
--
作者：
Hunter, DG;Patel, SN;Guyton, DL
通过非侵入性视网膜扫描远程监测正常受试者的中央凹固定。偏振红外光在视网膜上成像，并在3度环内扫描，频率为44 Hz。差分偏振检测对反射进行了分析。在所有被研究的32只眼睛中，在中心注视期间检测到的信号主要为88 Hz（在+/-1度范围内），在中心旁注视期间检测到的信号主要为44 Hz。44 Hz的相移与眼移方向相关。这项技术的潜在应用包括眼科疾病的筛查、临床过程中的眼位监测以及使用眼固定来操作设备。(C) 1999美国光学学会。OCIS代码：070.6020,120.5410,170.4460,170.4470,330.4300,330.2210。
Foveal fixation was monitored in normal subjects remotely and continuously by use of a noninvasive retinal scan. Polarized infrared light was imaged onto the retina and scanned in a 3 degrees annulus at 44 Hz. Reflections were analyzed by differential polarization detection. In all 32 eyes studied, the detected signal was predominantly 88 Hz during central fixation (within +/-1 degrees) and 44 Hz during paracentral fixation. Phase shift at 44 Hz correlated with the direction of eye displacement. Potential applications of this technique include screening for eye disease, eye position monitoring during clinical procedures, and use of eye fixation to operate devices. (C) 1999 Optical Society of America. OCIS codes: 070.6020, 120.5410, 170.4460, 170.4470, 330.4300, 330.2210.