• We compared the visual acuity of 89 patients obtained via a telephone interview with visual acuity elicited from the same patients in an ophthalmologist's office. Agreement within one line of vision between the telephone interview, in which patients used a modified Rosenbaum near card with attached patch, and the clinic near vision test was observed in 91% of eyes, while agreement within one line of vision between the telephone interview and clinic distance vision test was found in 86% of eyes. We conclude that testing visual acuity via a telephone interview is a potentially useful approach to assessment of visual acuity and prevalence of visual impairment in the larger population.
DeiCas R, Street DA, Javitt JC. Assessment of Visual Acuity Via a Telephone Interview. Arch Ophthalmol. 1992;110(9):1279–1282. doi:10.1001/archopht.1992.01080210097034
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