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Table 4 Mean values and statistical significance 

From: Visual rehabilitation via microperimetry in patients with geographic atrophy: a pilot study

  Mean SD (±) p value
Initial visual acuity 0.7 LogMAR 0.4 0.006
Final visual acuity 0.6 LogMAR 0.4
initial reading speed 47 wpm 26 0.04
Final reading speed 69 wpm 54
Initial retinal sensitivity 14.1 dB 4.9 0.4
Final retinal sensitivity 14.6 dB 4.3
Initial P1 45% 32 0.05
Final P1 51% 29
Initial 95% BCEA 43° 44 0.02
Final 95% BCEA 25° 21
  1. All data included refers to the treated eye, except for the reading speed, which was with both eyes
  2. wpm words per minute, dB decibels, SD standard deviation