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Table 2 Participant clinical characteristics

From: Vision-related quality of life in adults with severe peripheral vision loss: a qualitative interview study

  Glaucoma (n = 18) Retinitis Pigmentosa (n = 19)
Visual acuity (better eye)
Median 20/27.5 20/40
Range 20/20–20/150 20/20–20/800
Visual fielda
Median −16.05 dB 10°
Range −31.42- -9.86 dB 4–20º
Pelli-Robson contrast sensitivity (log contrast sensitivity)
Median 1.1 1.2
Range 0.5–1.5 0.00–1.7
Duration of disease (years)
Median 10 26
Range 1–22 3–61
Other ocular comorbidity
Cataract 89% 58%
Usher Syndrome 0% 26%
Other 6% 11%
Medical comorbidity
 Yes 94% 53%
Depression or anxiety 22% 32%
Hypertension 61% 0%
Heart Disease 22% 0%
Stroke 11% 0%
Diabetes 28% 0%
Lung Disease 22% 0%
Arthritis 39% 0%
Other 28% 21%
Low vision device use
Yes 50% 84%
Low vision rehabilitation experience
Yes 39% 63%
  1. dB: decibel, RP retinitis pigmentosa
  2. a For glaucoma: visual field mean deviation in decibels; for RP widest diameter of III4e isopter on Goldmann visual field test
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