Reading speed test for potential central vision measurement.
This study examines the validity and reliability of a reading speed test as a measure of potential central vision. Reading speed was calculated in words per minute (wpm) from the time taken to read 30 words of 1.20 logMAR size text. Scores were obtained from subjects with cataract (n = 48), macular disease(n = 35), peripheral vision loss(n = 14) and normal eyes (n = 10). Subjects with macular disease (27.0 +/- 13.2 wpm) read much slower than subjects with cataract (91.9 +/- 13.6 wpm). Little difference was found between subjects with cataract, peripheral vision loss (91.5 +/- 14.7 wpm)and normal eyes (103.8 +/- 15.5 wpm). Repeat testing gave values within +/- 16% of reading speed. These results suggest that a reading speed test using large text could be useful as a potential central vision test in cataract patients.
Pesudovs
Konrad
K
Department of Optometry, University of Bradford, Bradford, West Yorkshire, United Kingdom. K.Pesudovs@bradford.ac.uk
Patel
Bhavesh
B
Bradbury
John A
JA
Elliott
David B
DB
D000368:Aged; D002386:Cataract / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008268:Macular Degeneration / Q000150:complications / Q000175:diagnosis*; D008875:Middle Aged; D011237:Predictive Value of Tests; D012372:ROC Curve; D011932:Reading; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014786:Vision Disorders / Q000175:diagnosis* / Q000209:etiology; D014787:Vision Tests / Q000295:instrumentation / Q000379:methods*; D014785:Vision, Ocular / Q000502:physiology; D014792:Visual Acuity