Longitudinal cohort* (n = 45) characteristics
| Site | Number of patients | Mean age (SD) at initial visit (years) | Mean VA (SD) of better eye at initial visit in logMAR (Snellen) | Mean rate (SD) of VA change (logMAR/5 years)† |
|---|---|---|---|---|
| *Followed for at least 3 visits over a minimum period of 4.5 years; †a change of 0.1 logMAR equivalent = 1 line (Lighthouse chart, 2nd ed).7 | ||||
| I Eye and Ear Infirmary, UIC | 19 | 33.0 (13.8) | 0.04 (0.08) (20/22) | 0.10 (0.22) |
| II Jules Stein Eye Institute, UCLA | 22 | 29.9 (15.9) | 0.12 (0.17) (20/26) | 0.08 (0.11) |
| III Casey Eye Institute, OHSU | 4 | 36.1 (19.5) | 0.10 (0.14) (20/25) | 0.05 (0.03) |
| Total | 45 | 31.8 (15.1) | 0.09 (0.14) (20/31) | 0.09 (0.16) |