Table 2.

Anterior segment disorders in Down syndrome (DS) and control groups

Disorder	DS group n (%)	Control group n (%)	χ2	P-value
Allergy	1 (2.38)	7 (8.97)	0.99	0.269F
Blepharitis	1 (2.38)	2 (2.56)	0.30	1.000F
Chalazion	1 (2.38)	0 (0.0)	0.09	0.355F
Conjunctivitis	8 (19.05)	7 (8.97)	1.22	0.270C
Hypochromia iridis	1 (2.38)	0 (0.0)	0.09	0.355F
Keratitis	3 (7.14)	0 (0.0)	2.90	0.05*,F
Buphthalmos	1 (2.38)	0 (0.0)	0.09	0.355F
Nasolacrimal duct obstruction	1 (2.38)	0 (0.0)	0.09	0.355F
Total	17 (40.48)	16 (20.50)
No abnormality detected	25 (59.52)	62 (79.48)	5.46	0.02*C
Total	42 (100.0)	78 (99.98)

Notes:

^*Significant (P < 0.05);

^FP-value derived from Fisher’s exact test;

^CP-value derived from Pearson’s chi-square.