clinically significant refractive errors were defined by the results of cycloplegic retinoscopy : `` '' at-risk '' '' infants had either 3.5 d or more hyperopia in either eye , or astigmatism in either eye greater than or equal to 2.5 d , or anisometropia greater than or equal to 1.5 d .
C0034951
refractive errors
C0003081
anisometrop