Table 2

Standard gamble utility values for the NLP, LP-CF, and 20/200–20/400 groups

Group Mean utility SD 95% CI p Value p Value
20/200–20/4000.800.210.73–0.870.3 × 10−10 0.02
  • NLP = no light perception in each eye; LP-CF = light perception to counting fingers in the better eye; 20/200–20/400 = 20/200 to 20/400 in the better eye;

  • using the heteroscedastic Student'st test compared with the NLP group;

  • using the heteroscedastic Student's t test compared with the light perception to counting fingers group; NA = not applicable.