Table 1 Group mean and SD for visual parameters in the two sessions (baseline and after smoking cannabis).
From: Effects of cannabis on visual function and self-perceived visual quality
Baseline (mean ± SD) | Cannabis (mean (SD)) | t/z | p value | |
|---|---|---|---|---|
Binocular VA (logMAR) | − 0.11 ± 0.05 | − 0.06 ± 0.06 | − 6.103 | < 0.001 |
Binocular CS | 143.43 ± 15.85 | 130.50 ± 19.49 | 4.439 | < 0.001 |
Stereoacuity (arcsec) (5.5 m)a | 50.67 ± 47.92 | 158.67 ± 104.64 | − 4.461 | < 0.001 |
Stereoacuity (arcsec) (0.4 m)a | 22.23 ± 10.11 | 33.50 ± 28.76 | − 3.528 | < 0.001 |
Accommodative response (lag) (D) (0.4 m) | − 0.97 ± 0.50 | − 1.22 ± 0.60 | 3.026 | 0.006 |
Accommodative response (lag) (D) (0.2 m) | − 1.28 ± 0.63 | − 1.73 ± 0.77 | 3.892 | 0.001 |
Straylight (Log(s))a | 0.85 ± 0.09 | 0.93 ± 0.15 | − 3.573 | < 0.001 |
Binocular VDIa | 0.13 ± 0.05 | 0.15 ± 0.06 | − 2.415 | 0.016 |
Pupil size (mm) | ||||
Scotopic | 6.71 ± 0.84 | 6.36 ± 0.66 | 4.046 | < 0.001 |
Low mesopic | 6.00 ± 0.87 | 6.03 ± 0.70 | − 0.366 | 0.72 |
High mesopic | 5.56 ± 0.89 | 5.59 ± 0.87 | − 0.257 | 0.80 |
