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

Table 3

CVS by participant characteristics and digital device use behavior.

Participants characteristic		CVS frequency (%)
Gender	Male	102 (62.58)
	Female	131 (65.83)
Age	≤20	95 (64.63)
	21–25	134 (65.05)
	26–30	4 (44.44)
Year of college	1^st	17 (54.84)
	2^nd	61 (66.3)
	3^rd	59 (68.6)
	4^th	96 (62.75)
Years of digital device use	<5	50 (36.23)
	5–10	76 (80)
	>10	107 (82.95)
Digital device use per day (hours)	<3	37 (36.64)
	3–6	106 (70.2)
	>6	90 (81.82)
Frequent break during digital device use	Yes	168 (61.09)
	No	65 (74.71)
Digital device brightness/contrast adjustment	Yes	188 (63.51)
	No	45 (66.18)
Anti-glare device use	Yes	34 (68.0)
	No	199 (63.78)