Skip to main content
. Author manuscript; available in PMC: 2018 Jul 12.
Published in final edited form as: Am J Ophthalmol. 2018 Mar 15;189:127–138. doi: 10.1016/j.ajo.2018.02.012

Table III.

Visual acuity measures: Computerized

Measure Statistic Early Intermediate Normal P-value Overall P-value Early vs Intermediate P-value Early vs Normal P-value Intermediate vs Normal
BCVA N 33 45 21 0.07 0.95 0.04 0.04
Mean (SD) 81.79 (6.03) 81.09 (6.54) 85.00 (5.50)
Min, Median, Max 70.0, 81.0, 98.0 60.0, 82.0, 90.0 73.0, 84.0, 95.0
LLVA1 N 33 46 20 0.21 0.29 0.43 0.09
Mean (SD) 70.00 (7.94) 67.48 (8.20) 71.55 (5.92)
Min, Median, Max 50.0, 69.0, 84.0 50.0, 68.5, 83.0 63.0, 70.5, 85.0
LLD1 N 33 45 20 0.53 0.40 0.29 0.73
Mean 11.79 (6.08) 13.22 (5.92) 13.60 (5.25)
Min, Median, Max 1.0, 13.0, 28.0 2.0, 13.0, 25.0 4.0, 13.0, 23.0
LLVA2 N 33 46 19 0.02 0.06 0.37 0.01
Mean 56.62 (10.69) 50.15 (13.00) 58.79 (8.13)
Min, Median, Max 39.0, 54.0, 83.0 11.0 51.0, 73.0 48.0, 55.0, 76.0
LLD2 N 33 45 19 0.08 0.04 0.71 0.13
Mean 25.27 (9.99) 30.71 (10.86) 26.21 (7.33)
Min, Median, Max 5.0, 27.0, 45.0 11.0, 31.0, 59.0 7.0, 26.0, 42.0

Overall p-value based on Kruskal-Wallis test of difference among medians

Pair-wise p-values based on Wilcoxon rank sum test of difference between medians.