A person is more likely to become visually impaired as that person ages  Among adults in the state of Illinois, however, the proportion receiving benefit payments from their vision insurance shrinks from 56 percent among 50-64 year olds to 24 percent for those aged 65-79, and 13 percent for those aged 79 and older
The explanation of this discrepancy is that the proportion of jobs offering such an insurance benefit has greatly increased in recent years
Medical advances have improved the average person's vision beyond what it was 20 years ago.