Table 2.

Clinical characteristics of study participants at the University of Gondar Tertiary Eye Care and Teaching Center, Ethiopia, 2017 (n = 484).

Variables	Frequency	Percentage
Visual impairment
Moderate	309	63.84
Severe/blind	175	36.16
Duration of visual impairment
<1 year	89	18.39
1–3 years	193	39.88
>3 years	202	41.73
Systemic comorbidities
No	387	79.96
Yes	97	20.04