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Table 2 Value table of specific parameters of premature and full-term neonatal optic discs. (n = 120)

From: Comparative study on optic disc features of premature infants and full‐term newborns

 

Premature baby

Full-term newborn

Number of cases (eye)

60

60

Disc longitudinal diameter (mm)

1.43 ± 0.00

1.42 ± 0.11

Optic disc transverse diameter(mm)

1.11 ± 0.04

1.13 ± 0.05

Vertical diameter / transverse diameter

1.29 ± 0.01

1.27 ± 0.01

Average diameter of the optic disc (mm)

1.27 ± 0.02

1.27 ± 0.08

Depending on the longitudinal diameter of the cup (mm)

0.44 ± 0.01

0.44 ± 0.03

Sight cup diameter (mm)

0.40 ± 0.01

0.40 ± 0.05

C/D (vertical)

0.31 ± 0.01

0.31 ± 0.05

C/D (horizontal)

0.36 ± 0.01

0.35 ± 0.03