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10.05.2016 | Original Paper | Ausgabe 1/2017

International Ophthalmology 1/2017

Comparison of distance and near visual acuity in patients with vision loss due to cataract

Zeitschrift:
International Ophthalmology > Ausgabe 1/2017
Autoren:
Carmel L. Mercado, Pavle Doroslovački, Jiangxia Wang, Aazim A. Siddiqui, Andrew F. Kolker, Richard J. Kolker

Abstract

The purpose of this study was to assess whether there is a disparity in distance and near best-corrected visual acuity (BCVA) in cataract eyes. 102 patients with cataract (N = 121 eyes) were seen in clinic between January and November 2013 at the Wilmer Eye Institute Comprehensive Eye Service. An age-related macular degeneration (ARMD) group (N = 27 eyes) was also identified for comparison. Distance and near BCVA were measured as part of the standard ophthalmic evaluation. Snellen measurements were converted to their LogMAR equivalents for statistical analysis. Near was better than distance BCVA with mean difference of 1.38 lines (P < 0.001) in the cataract eyes. This disparity was not seen in the ARMD eyes. Near–distance BCVA disparity is a statistically significant finding seen with cataracts. This may have further implications in patients with both cataract and ARMD as the presence of disparity may suggest a cataract etiology playing a greater role in vision loss. This comparison may be useful for surgical prognostication and as a quick triage tool in conjunction with, or in place of, a potential acuity meter and dilated near-pinhole test.

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