Table.
Participant Demographic and Ocular Characteristics at Study Baseline
| Variable | Characteristic or Statistic | Value |
|---|---|---|
| N | 24 | |
| Sex, n (%) | Male | 7 (29) |
| Female | 17 (71) | |
| Age | Mean (SD; range) | 74.3 (7.8; 63–89) |
| Ethnicity, n (%) | Hispanic or Latino | 2 (8) |
| Not Hispanic or Latino | 21 (88) | |
| Unknown | 1 (4) | |
| Race, n (%) | Asian | 2 (8) |
| Black | 1 (4) | |
| White | 21 (88) | |
| Fovea involving GA based on FAF (study eye), n (%) | Subfoveal | 14 (58) |
| Not subfoveal | 10 (42) | |
| Square root of GA area based on FAF (study eye), mm | Mean (SD) | 2.6 (0.9) |
| BCVA letter score; Snellen distance,a (study eye) | Mean (SD) | 71.1 (15.7); 56.8 (72.6) |
| LLVA letter score; Snellen distance,a (study eye) | Mean (SD) | 54.1 (16.3); 118.2 (108.7) |
Denominators are the number of participants with successful overlay of microperimetry and OCT data (N = 24). Percentages are rounded to the nearest whole number. LLVA, low-luminance visual acuity.
a
Snellen distance represents the denominator in the 20/X Snellen notation (i.e., the size of letters read on a Snellen visual acuity chart at 20 feet); for <20/800 Snellen values, 800 was used as the Snellen distance.