Wright C E, Drasdo N
Doc Ophthalmol. 1985 Jun 30;59(4):385-95. doi: 10.1007/BF00159172.
A clinical technique for sampling the spatial and temporal CSF at low, intermediate and high frequencies is described. Reductions in contrast sensitivity with age were shown with the highest spatial and temporal frequency stimuli. The reductions can be almost completely accounted for by the reduction of pupil area with age, causing a reduction in retinal illuminance. The results show a significant deterioration in vision with age that is not revealed by standard visual acuity testing.
本文描述了一种用于在低频、中频和高频下对脑脊液进行空间和时间采样的临床技术。研究表明，随着年龄增长，在最高空间和时间频率刺激下，对比敏感度会降低。这种降低几乎完全可以归因于随着年龄增长瞳孔面积减小，导致视网膜照度降低。结果表明，随着年龄增长视力显著下降，而标准视力测试并未显示这一点。
