Table 3.
New certifications for SI and SSI due to diabetic retinopathy in those persons with known diabetes in Wales between 2007 and 2015: n (per 100 000 population)
| Time period | Total with diabetes | Total new certifications | SI | SSI |
| 2007–2008 | 131 119 | 108 (82.4) | 64 (48.8) | 41 (31.3) |
| 2008–2009 | 138 988 | 140 (100.7) | 89 (64.5) | 51 (36.7) |
| 2009–2010 | 146 173 | 118 (80.7) | 71 (48.6) | 45 (30.8) |
| 2010–2011 | 153 175 | 103 (67.2) | 62 (40.5) | 40 (26.1) |
| 2011–2012 | 160 533 | 95 (59.2) | 55 (34.3) | 38 (23.7) |
| 2012–2013 | 167 537 | 98 (58.5) | 58 (34.6) | 38 (22.7) |
| 2013–2014 | 173 299 | 95 (54.8) | 62 (35.8) | 29 (16.7) |
| 2014–2015 | 183 348 | 86 (46.9) | 51 (27.8) | 29 (15.8) |
SI, sight impairment; SSI, severe sight impairment.