Summary of fixation count, fixation length and pupil diameter for easy and difficult segments in the AMD and control groups
| Segment and measure | Control group Mean (SD) | AMD group Mean (SD) |
|---|---|---|
| Easy segment fixation count (count) | 31.2 (9.0) | 33.1 (10.5) |
| Difficult segment fixation count (count) | 36.2 (11.3) | 40.1 (11.9) |
| Easy segment fixation length (s) | 275.7 (83.5) | 249.9 (77.8) |
| Difficult segment fixation length (s) | 240.1 (65.3) | 247.4 (79.5) |
| Easy segment pupil size (mm) | 3.4 (0.5) | 4.1 (0.8) |
| Difficult segment pupil size (mm) | 3.7 (0.5) | 4.1 (0.8) |
AMD, age-related macular degeneration.