Demographic data of the prematurely born and full term children
| No of better eyes | Sex(M/F) | GA at birth (weeks) | BW (g) | VA (logMAR) in better eye | Spherical equivalentin better eye | Astigmatism in better eye | ||
|---|---|---|---|---|---|---|---|---|
| GA, gestational age; BW, birth weight; VA, visual acuity. | ||||||||
| Mean values and ranges for gestational age at birth and birth weight are given for preterm children and ranges for full term ones. | ||||||||
| Mean values and ranges are given for VA and spherical equivalent. Median values and ranges are given for astigmatism. | ||||||||
| Controls | 215 | 101/114 | (39–41) | (3000–4000) | −0.11 (−0.3–0.3) | 0.65 (−2.25–+4.0) | 0.0 (0–3.0) | |
| Prematures | 205 | 95/110 | 29.2 (24–35) | 1171 (685–1500) | −0.06 (−0.2–0.4) | 0.75 (−7.75–+6.25) | 0.5 (0–2.75) | |
| No ROP | 133 | 64/69 | 29.8 (25–35) | 1215 (685–1500) | −0.08 (−0.2–0.19) | 0.76 (−4.0–+4.75) | 0.5 (0–2.75) | |
| Mild ROP | 38 | 18/20 | 28.5 (25–32) | 1146 (731–1475) | −0.05 (−0.2–0.1) | 0.88 (−1.25–+6.25) | 0.5 (0–2.0) | |
| Severe ROP, untreated | 12 | 6/6 | 28.5 (25–32) | 1137 (687–1451) | −0.06 (−0.2–0.1) | 0.83 (0–+1.8) | 0.375 (0–1.0) | |
| Cryotreated ROP | 22 | 7/15 | 27.7 (24–32) | 1000 (700–1380) | 0.03 (−0.2–0.4) | 0.39 (−7.75–+6.25) | 0.75 (0–2.75) | |