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Br J Ophthalmol. 2012 May;96(5):735-41. doi: 10.1136/bjophthalmol-2011-300093. Epub 2012 Jan 12.

A clinical method to assess the effect of visual loss on the ability to perform activities of daily living.

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1
Louis Esposito Research Professor, Glaucoma Research Center, Wills Eye Institute/Jefferson Medical College, 840 Walnut Street, Suite 1110, Philadelphia, PA 19107, USA.

Abstract

BACKGROUND/AIMS:

To develop a clinically applicable, performance-based measure of the ability to perform visually related activities.

METHODS:

99 patients with glaucoma and 21 subjects with a normal ocular examination completed a nine-item performance-based test (the Assessment of Ability Related to Vision (AARV)), received a standard ophthalmic clinical examination and answered the questions on the National Eye Institute's Visual Functioning Questionnaire (NEI-VFQ-25). All combinations of two, three or four items of the full nine-item AARV test were analysed, and their scores were compared with the full AARV scores and with clinical measures.

RESULTS:

The correlation of four items (detecting motion, reading signs, finding objects and navigating an obstacle course) reduced test time from 60±5 min to 14±4 min and yielded results highly related to the nine-item test, including maintaining the relationship with clinical measures and with the NEI-VFQ-25.

CONCLUSION:

A compressed AARV correlates highly with the full test, with a method of evaluating quality of life, and with clinical measures, yet takes on average 14 min to perform. As such, it may provide a clinically useful method of evaluating the worsening effects of illness and the benefits of treatments that affect visual loss on the ability to perform visually related activities.

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