Table 1.

Comparison of changes in visual parameters after playing a virtual reality game with different depths perception

Variable	Pre	Post	p-value
Immersive mode
Refraction (dominant eye), Diopter	−0.38 (0.63)	− 0.25 (0.50)	0.935
Refraction (non-dominant eye), Diopter	−0.19 (0.81)	−0.13 (0.81)	0.654
NPA (dominant eye), cm	8.50 (3.00)	10.0 (3.50)	0.005*
NPA (non-dominant eye), cm	8.50 (3.00)	10.0 (3.50)	0.002*
NPC, cm	7.00 (3.00)	9.00 (3.25)	0.001*
Near stereopsis, sec	40.0 (12.50)	40.0 (12.50)	0.180
Phoria, PD (near)	2.00 (8.00)	2.00 (8.00)	0.086
Non-immersive mode
Refraction (dominant eye), diopter	−0.38 (0.63)	−0.25 (0.63)	0.261
Refraction (non-dominant eye), diopter	−0.25 (0.88)	−0.25 (0.63)	0.881
NPA (dominant eye), cm	9.00 (3.00)	9.50 (4.25)	0.058
NPA (non-dominant eye), cm	9.50 (3.00)	9.00 (4.00)	0.120
NPC, cm	8.00 (3.00)	9.00 (4.00)	0.002*
Near stereopsis, sec	40.0 (10.0)	40.0 (20.0)	0.234
Phoria, PD (near)	5.00 (8.00)	5.00 (8.00)	0.257

Data presented as median (interquartile range). NPA, near point of accommodation; NPC near point of convergence; PD prism diopter *statistically significant value using the Benjamini-Hochberg procedure