DeLint P J, Keunen J E, Liem A T, van Norren D
Helmholtz Institute, Department of Ophthalmology, Utrecht University, The Netherlands.
Br J Ophthalmol. 1996 Dec;80(12):1051-4. doi: 10.1136/bjo.80.12.1051.
To assess foveal cone photoreceptor function in patients with unexplained loss of central visual acuity.
Testing of foveal cone photoreceptor function was performed using scanning laser densitometry, colour matching (Rayleigh equation), and pattern electroretinography (ERG). Standard tests included full field ERG, electrooculography, visual evoked potentials, static perimetry, and fluorescein angiography.
Decreased foveal cone photopigment density and abnormal pattern ERG were found in three patients. Results of colour matching were not unequivocal.
Testing of foveal cone photoreceptor function using scanning laser densitometry may determine the location of pathological changes in certain patients with unexplained visual loss.
评估不明原因中心视力丧失患者的黄斑区视锥光感受器功能。
采用扫描激光密度测定法、颜色匹配（瑞利方程）和图形视网膜电图（ERG）对黄斑区视锥光感受器功能进行检测。标准检查包括全视野ERG、眼电图、视觉诱发电位、静态视野检查和荧光素血管造影。
3例患者出现黄斑区视锥光色素密度降低和图形ERG异常。颜色匹配结果不明确。
使用扫描激光密度测定法检测黄斑区视锥光感受器功能，可能有助于确定某些不明原因视力丧失患者的病变部位。
