Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Prevalence of significant refractive errors for preterm infants at different test ages
| Incidence (%) (No) | |||||
| Age (total No) | High myopia | Myopia | Hyperopia | Astigmatism | Anisometropia |
| Birth (52) | 5.8 (3) | 32.7 (17) | 15.4 (8) | 48.1 (25) | 35.4 (17) |
| Term (40) | 0 | 17.5 (7) | 7.5 (3) | 45.0 (18) | 18.4 (7) |
| 6 months (27) | 0 | 3.7 (1) | 18.5 (5) | 48.2 (13) | 14.8 (4) |
| 12 months (30) | 0 | 0 | 16.7 (5) | 26.7 (8) | 3.3 (1) |
| 4 years (26) | 0 | 3.8 (1) | 11.5 (3) | 7.7 (2) | 7.7 (2) |
