PMC full text:
Published online 2016 Aug 25. doi: 10.1111/cxo.12444
Table 1
Demographic data from the Argus II clinical trial
| Age at time of implant | |
| Mean | 58.3 |
| Median | 57.9 |
| Range | 27.8–77.4 |
| Female : male ratio | 9:21 |
| Race | |
| White | n = 27 (90%) |
| Other | n = 3 (10%) |
| Years since first diagnosis of RP | |
| Mean | 15.9 |
| Median | 17.5 |
| Range | 1.5–26.9 |
RP: retinitis pigmentosa