Digital Device Use, Computer Vision Syndrome, and Sleep Quality among an African Undergraduate Population

Table 1

Characteristics of study participants.

Characteristics		Frequency (%)
Gender	Male	163 (45.03)
	Female	199 (54.97)
Age (years)	≤20	147 (40.61)
	21–25	206 (56.91)
	26–30	9 (2.48)
BMI (kg/m^2)	18.5–24.9	268 (74.03)
	25.0–29.9	79 (21.82)
	≥30.0	15 (4.14)
Bedtime smartphone use	Yes	279 (77.07)
	No	83 (22.93)
Year of college	1^st	31 (8.56)
	2^nd	92 (25.41)
	3^rd	86 (23.76)
	4^th	153 (42.27)
Spectacle use	Yes	177 (48.90)
	No	185 (51.10)
Purpose of spectacle wear	General purpose	122 (68.93)
	Digital device use	37 (20.90)
	Other purpose	18 (10.17)