Ross J E, Clarke D D, Bron A J
Br J Ophthalmol. 1985 Jan;69(1):51-6. doi: 10.1136/bjo.69.1.51.
Monocular and binocular contrast sensitivity function for a range of spatial frequencies was measured in two groups of subjects with normal vision. Statistically significant differences in performance between the younger group (age 20-30 years) and the older group (age 50-87 years) were found at all spatial frequencies sampled between 0.40 and 19 X 25 cpd. In the age range 50-87 years there was a linear decline in contrast sensitivity with age for medium and high spatial frequencies, but sensitivity for low spatial frequencies was independent of age.
在两组视力正常的受试者中测量了一系列空间频率下的单眼和双眼对比敏感度函数。在0.40至19×25周/度之间采样的所有空间频率上,发现年轻组(20 - 30岁)和老年组(50 - 87岁)之间在表现上存在统计学显著差异。在50 - 87岁年龄范围内,中高空间频率的对比敏感度随年龄呈线性下降,但低空间频率的敏感度与年龄无关。