Table 1.

Correlation Between Differences in Daily Screen-Hours and Study Parameters

Parameters	r (Correlation Coefficient)	P value
UDVA	−0.61	<0.0001*
CDVA	−0.25	0.08
Ring 1	0.53	0.0001
Ring 2	0.51	0.0002
Ring 3	0.26	0.06
Ring 4	0.04	0.80
Ring 5	0.15	0.38
Quadrant 1	0.38	0.006
Quadrant 2	−0.12	0.39
Quadrant 3	0.19	0.19
Quadrant 4	−0.05	0.74

Notes: bold value* signifies negative correlation; bold values signify positive correlation.