1. Reading performance of monofocal pseudophakic patients with and without glasses under normal and dim light conditions.
- Author
-
Radner W, Radner S, Raunig V, and Diendorfer G
- Subjects
- Aged, Aged, 80 and over, Humans, Light, Middle Aged, Newspapers as Topic, Vision Tests, Visual Acuity physiology, Color Vision physiology, Eyeglasses, Mesopic Vision physiology, Pseudophakia physiopathology, Reading, Vision, Binocular physiology
- Abstract
Purpose: To evaluate reading performance of patients with monofocal intraocular lenses (IOLs) (Acrysof SN60WF) with or without reading glasses under bright and dim light conditions., Setting: Austrian Academy of Ophthalmology, Vienna, Austria., Design: Evaluation of a diagnostic test or technology., Methods: In pseudophakic patients, the spherical refractive error was limited to between +0.50 diopter (D) and -0.75 D with astigmatism of 0.75 D (mean spherical equivalent: right eye, -0.08 ± 0.43 [SD]; left eye, -0.15 ± 0.35). Near addition was +2.75 D. Reading performance was assessed binocularly with or without reading glasses at an illumination of 100 candelas (cd)/m(2) and 4 cd/m(2) using the Radner Reading Charts., Results: In the 25 patients evaluated, binocularly, the mean corrected distance visual acuity was -0.07 ± 0.06 logMAR and the mean uncorrected distance visual acuity was 0.01 ± 0.11 logMAR. The mean reading acuity with reading glasses was 0.02 ± 0.10 logRAD at 100 cd/m(2) and 0.12 ± 0.14 logRAD at 4 cd/m(2). Without reading glasses, it was 0.44 ± 0.13 logRAD and 0.56 ± 0.16 logRAD, respectively (P < .05). Without reading glasses and at 100 cd/m(2), 40% of patients read 0.4 logRAD at more than 80 words per minute (wpm), 68% exceeded this limit at 0.5 logRAD, and 92% exceeded it at 0.6 logRAD. The mean reading speed at 0.5 logRAD was 134.76 ± 48.22 wpm; with reading glasses it was 167.65 ± 32.77 wpm (P < .05)., Conclusion: A considerable percentage of patients with monofocal IOLs read newspaper print size without glasses under good light conditions., (Copyright © 2014 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF