Table 4.

Present study in comparison to the other major studies of similar kind.

Publications	Country	Single centre/multicentre	Screened population	Screened number	Method	Timing	Ocular pathology	RHs	Other abnormal findings
Li et al. (2013)	South China	Single centre	BW >2500 g and 37 weeks GA	3573	Flash light, Retinoscope, S/L WFDRI	<42 days after birth	24.40%	21.50%	Sub conjunctival haemorrhage (1.4%), microphthalmos, congenital cataract, corneal opacity, Hamartoma/Rb
Vinekar et al. (2015)	South India	Single centre	Term and BW 42 kg	1021	WFDRI	72 hr after birth	4.70%	2.4%	Ridge‐like ROP (0.9%), retinal dysplasia, PFVS, RB, congenital cataract
Li et al. (2017)	South China	Single centre	Full‐term neonates	15 284	WFDRI	Within 7 days after birth	21%	19%	Media opacity, optic nerve abnormalities (coloboma), cataract, RB
Goyal et al. (2017)	Eastern India	Single centre	Healthy neonates any BW and GA	1152	WFDRI	<28 days after birth	14.90%	13.20%	Congenital glaucoma, ridge‐like ROP, cystic fovea, uveal coloboma
Callaway et al. (2016)	US	Single centre	All infants who were 37 weeks postmenstrual age or older and were deemed stable	202	WFDRI	131 infants <48 hr; 71 infants ≥48 hr	20.30%	20.30%	Fundus haemorrhages
Simkin et al. (2019)	New Zealand	Two centre	Infants excluding GA <3 weeks or BW <1250 g	350	WFDRI	Not specified	15.90%	14.50%	Congenital cataract and optic nerve hypoplasia
Our study	China	Multicentre	Healthy neonates any BW and GA	64 632	WFDRI	<28 days after birth	20.91%	11.83%	Abnormalities of anterior segment, posterior segment, ocular appendix and others (Table 2)

BW = birthweight, GA = gestational age, RB = retinoblastoma, RH = retinal haemorrhage, ROP retinopathy of prematurity, WFDRI = wide‐field digital retinal imaging.