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Vision Impairment Indicates Memory Decline in Adults, Study Finds

A study found that distance vision impairment indicates an accelerated rate of memory decline in adults.

Photo: Eye Examination | InStyleHealth

Study included 8,939 volunteers aged 50 – 95 years old from the Health and Retirement Study (HRS) from the US and 8,315 individuals aged 50 – 94 years from the China Health and Retirement Longitudinal Study (CHARLS).

Follow-up  for over an average of up to 4 years, the composite memory declined by 0.16 points in CHARLS and by 0.51 in HRS. Distance vision impairment was negatively correlated with an annual change in composite memory and immediate memory in CHARLS. The same was true in HRS group, with values of -0.19 and -0.07 respectively.

Particularly, near vision impairment contributed to an annual decline in delayed memory in CHARLS and in composite memory, immediate memory, and delayed memory in HRS.

In HRS group, the correlation between distance vision impairment and memory decline was clear among individuals aged <65 years old but not among those who were older > 65 years.

Meanwhile, cataract surgery or glaucoma showed no correlation with memory decline in either CHARLS or HRS groups.

For complete details of the study, click here.


Source: Am J Ophthalmol 2021;doi:10.1016/j.ajo.2021.03.021

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