Types and Presentation of Refractive Error among Individuals Aged 0–30 Years: Hospital-Based Cross-Sectional Study, Yemen

Table 2

Frequency of presenting symptoms and signs (%) for all types of refractive error according to age group (N = 1,500).

	Age group	Sample	DV		HA		Ex		Es
			N	%	N	%	N	%	N	%
Myopia	0–6	35	17	48.6	0	0	12	34.3	6	17.1
	7–12	65	25	38.5	6	9.2	30	46.1	4	6.2
	13–18	90	45	50	10	11.1	35	38.9	0	0
	19–24	135	78	57.8	32	23.7	25	18.5	0	0
	25–30	175	100	57.2	41	23.4	34	19.4	0	0
	Total	500	265	53	89	17.8	136	27.2	10	2
Hyperopia	0–6	90	30	33.3	0	0	5	5.6	55	61.1
	7–12	120	50	41.7	3	2.5	5	4.1	62	51.7
	13–18	280	100	35.7	95	34	25	8.9	60	21.4
	19–24	170	70	41.2	75	44.1	10	5.9	15	8.8
	25–30	140	67	47.9	57	40.7	13	9.3	3	2.1
	Total	800	317	39.6	230	28.8	58	7.3	195	24.3
Astigmatism	0–6	0	0	0	0	0	0	0	0	0
	7–12	35	10	28.6	20	57.1	5	14.3	0	0
	13–18	43	18	41.9	25	58.1	0	0	0	0
	19–24	67	30	44.8	37	55.2	0	0	0	0
	25–30	55	25	45.5	30	54.5	0	0	0	0
	Total	200	83	41.5	112	56	5	2.5	0	0

DV = decreased vision; HA = headache; Ex = exotropia; Es = esotropia.