Windham et al evaluated the impact of impaired vision on the ability of an older adult to take medications. The authors are from the National Institute on Aging, the Johns Hopkins University and University College London.

Patient selection: adult >= 65 years


Visual factors impacting the ability to take medications:

(1) impaired visual acuity

(2) contrast sensitivity

(3) impaired steropsis


Comorbid conditions (cognitive impairment, tremor, etc) may further worsen performance.


If the patient should wear corrective eyewear and use adequate lighting to improve performance.

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