[The C/D ratio in normal newborns].
The optic disc and the C/D ratio were examined in 122 newborns to find that the features of the C/D ratio were positive skewness distribution with leptokurtosis, a wide variability, lesser values of the mean, the median and the 95% upper limit, and non-correlation with the length of pregnancy and the height and weight of the baby at birth. The authors suggested that C/D > 0.3 or a binocular difference of > 0.2 could be regarded as one of the criteria of newborn glaucoma. It was also found that more greyish glial tissue was on the optic disc. The scope of the physiological optic cup was determined by the naked status of the central retinal vessels in the pale area.
Zhou
G
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Department of Ophthalmology, Second People's Hospital, Guangzhou.
D000886:Anthropometry; D001827:Body Height; D001835:Body Weight; D005260:Female; D005901:Glaucoma / Q000175:diagnosis; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009898:Optic Disk / Q000033:anatomy & histology* / Q000098:blood supply; D012016:Reference Values