P8d	postnatal 8 days
P6w	postnatal 6 weeks
CR	corneal curvature radius
AL	axial length
ROP	retinopathy of prematurity
OIR	oxygen-induced retinopathy
CCT	central corneal thickness
D	diopter
ACD	anterior chamber depth
LT	lens thickness
kPa	kilopascal
ROS	reactive oxidative species