Main causes of sight impairment in children certified in England and Wales in 2014/2015
| ICD-9 | Description | SSI | SI | Total | |||
| n | % | n | % | n | % | ||
| 191 | All malignant neoplasms (excl eye) | 13 | 2 | 8 | 1 | 21 | 1 |
| 270.2 | Albinism | 22 | 4 | 88 | 10 | 113 | 7 |
| Retinopathy of Prematurity | 17 | 3 | 12 | 1 | 29 | 2 | |
| 362.7 | Hereditary retinal dystrophies (eg, Ushers) | 96 | 16 | 135 | 15 | 231 | 15 |
| 377 (ex 377.7/.75) | Disorders of optic nerve and visual pathways | 70 | 11 | 69 | 8 | 140 | 9 |
| 377.7, 377.75 | Disorders of visual cortex and brain | 90 | 15 | 91 | 10 | 188 | 12 |
| 379.5 | Nystagmus and other irregular eye movements | 10 | 2 | 95 | 11 | 105 | 7 |
| 742 | Congenital anomalies of brain & nervous system | 34 | 5 | 28 | 3 | 63 | 4 |
| 743 | Congenital anomalies of eye | 67 | 11 | 83 | 9 | 157 | 10 |
| 760 | Other congenital anomalies | 19 | 3 | 26 | 3 | 46 | 3 |
| No information on main cause/ illegible / invalid | 18 | 3 | 22 | 2 | 41 | 3 | |
| Multiple Cause | 89 | 14 | 140 | 16 | 231 | 15 | |
| Other causes | 69 | 11 | 93 | 11 | 165 | 11 | |
| Total | 614 | 890 | 1530 | ||||