Samenvatting
The loss of visual sensitivity with age is accounted for by physical changes occurring at about age 35-45 years and consists in reduced power of accommodation of the lens and greater sensitivity to scotomatic glare. At age 60 a considerable decrease in the capacity to adapt to darkness and to perceive intermittent stimuli occurs. Also at this age measurable shrinkage of the visual field is observed. It is thought that these later changes are associated with changes of retinal metabolism.