Table 2 Mean values and changes of optometry indicators in the main and control experiments
From: Assessment of eye fatigue caused by head-mounted displays using eye-tracking
Experiment | Indicator | 1st measurement | 2nd measurement | 3rd measurement | 4th measurement |
|---|---|---|---|---|---|
Main experiment | BCC(D) | 0.14 ± 0.08 | 0.26 ± 0.34 | 0.36 ± 0.36 | {0.50} ± {0.40} |
NRA (D) | 2.35 ± 0.60 | {2.15} ± {0.61} | {2.00} ± {0.62} | {1.79} ± {0.64} | |
PRA (D) | − 2.74 ± 1.55 | − 2.40 ± 1.50 | − {2.11} ± {1.4} | − {1.78} ± {1.33} | |
PR (mm) | 5.37 ± 0.62 | 5.21 ± 0.60 | {5.08} ± {0.6} | {4.93} ± {0.62} | |
PL (mm) | 5.29 ± 0.67 | 5.10 ± 0.63 | {4.95} ± {0.65} | {4.79} ± {0.65} | |
LTR (mm) | 3.95 ± 0.36 | 3.90 ± 0.36 | 3.86 ± 0.36 | {3.79} ± {0.36} | |
LTL (mm) | 3.95 ± 0.35 | 3.89 ± 0.35 | 3.86 ± 0.36 | {3.77} ± {0.35} | |
Control experiment | BCC(D) | 0.14 ± 0.28 | 0.14 ± 0.28 | 0.14 ± 0.28 | 0.14 ± 0.28 |
NRA (D) | 2.35 ± 0.60 | 2.35 ± 0.60 | 2.35 ± 0.60 | 2.35 ± 0.60 | |
PRA (D) | − 2.74 ± 1.55 | − 2.74 ± 1.55 | − 2.74 ± 1.55 | − 2.74 ± 1.55 | |
PR (mm) | 5.37 ± 0.62 | 5.37 ± 0.62 | 5.37 ± 0.61 | 5.37 ± 0.62 | |
PL (mm) | 5.29 ± 0.67 | 5.29 ± 0.67 | 5.29 ± 0.66 | 5.29 ± 0.68 | |
LTR (mm) | 3.95 ± 0.36 | 3.95 ± 0.36 | 3.94 ± 0.36 | 3.95 ± 0.36 | |
LTL (mm) | 3.94 ± 0.35 | 3.95 ± 0.35 | 3.95 ± 0.35 | 3.95 ± 0.36 |