Table 1.

Descriptive data for the preterm group, with and without ROP

	Age (years) Median (range)	Gender ♀/♂	GA (weeks) Median (range)	BW (g) Median (range)	VA (Snellen) Median (range)	Spherical equivalent Median (range)
Total n = 15	13 (9–17)	11/4	30.0 (24–32)	1231 (611–2030)	1.0 (0.6–1.3)	+0.63 (−1.5–+2.38)
No ROP n = 6	14.0 (10–17)	5/1	31.0 (29–32)	1700 (1231–2030)	1.0 (0.6–1.25)	+0.31 (−1.5–+0.88)
ROP n = 9	13.0 (9–14)	6/3	27.5 (24–30)	901 (611–1614)	1.0 (1.0–1.3)	+0.81 (0.0–+2.38)

Visual acuity and spherical equivalent in right eyes

GA gestational age at birth, BW birth weight, VA visual acuity