Table 2.

Background characteristics of patients enrolled in the retinopathy of prematurity survey with and without acquired iridocorneal adhesion.

Characteristics	Iridocorneal adhesion absent, N = 71 eyes (N = 36 patients)	Iridocorneal adhesion present, N = 8 eyes (N = 4 patients)	P value	Notes
Gestational age, weeks (mean ± SD)∗	24.7 ± 1.35	23.9 ± 0.15	0.1912
Proportions
Male patients, N = 40	20 (50%)	20 (50%)	1.0
Right eyes, N = 35	33 (46.5%)	2 (25.0%)	0.0726	In 9 eyes, the laterality was not specified
Patients with bilateral disease, N = 39	36 (100%)	3 (75%)	0.10
Eyes with zone 1 and plus disease, N = 10	8 (11.3%)	2 (25%)	0.0014	∗∗
Eyes received intravitreal bevacizumab injection initially, N = 16	12 (16.9%)	4 (50%)	0.0488	∗∗
Eyes that required only one treatment, N = 55	54 (76.1%)	1 (12.5%)	0.0068	∗∗
Eyes that required additional laser only, N = 19	14 (19.7%)	5 (62.5%)
Eyes that required both additional laser and bevacizumab injection, N = 5	3 (4.2%)	2 (25%)

^∗SD = standard deviation. ^∗∗P value <0.05.