Table 5. Eye and hearing impairments: VLBWI born 2013 vs. 2014.
| Impairments | 2013 (n = 846) | 2014 (n = 1,182) | |
|---|---|---|---|
| Blindness | n = 846 | n = 1,134 | |
| One-eye | 4 (0.5) | 3 (0.3) | |
| Both eyes | 2 (0.2) | 3 (0.3) | |
| Unknown | 34 (4.0) | 42 (3.5) | |
| Ophthalmologic disordersa | 120 (14.2) | 179 (15.1) | |
| Retinopathy of prematurity | 56 (41.2) | 51 (26.6) | |
| Glaucoma | 0 (0) | 3 (1.6) | |
| Cataract | 2 (1.5) | 1 (0.5) | |
| Strabismus | 29 (21.3) | 40 (20.8) | |
| Refraction abnormality | 15 (11.0) | 11 (5.7) | |
| Wearing glasses | 23 (2.7) | 19 (1.6) | |
| Unknown | 39 (4.6) | 72 (6.1) | |
| Hearing impairmenta | 24 (3.2) | 22 (1.9) | |
| Unilateral | 10 (1.3) | 12 (1.0) | |
| Bilateral | 14 (1.9) | 10 (0.8) | |
| Hearing aid | 6 (0.7) | 3 (0.3) | |
| Need for cochlear impairment | 1 (0.1) | 4 (0.3) | |
VLBWI = very low birth weight infant
aThe above variable was described as multiple answers.