Study participant characteristics
| Parameter | Baseline exams (n=317) | Follow-up exams (n=72) |
|---|---|---|
| Age, mean (SD), years | 67.2 (10.2) | 66.0 (9.4) |
| Haemoglobin A1C, mean (SD), % | 7.2 (1.3) | 7.2 (1.1) |
| Blood pressure, mean (SD), mm Hg | ||
| Systolic | 133 (18.3) | 131 (16.6) |
| Diastolic | 71 (10.8) | 72 (10.7) |
| Years since diabetes diagnosis, mean (SD) | 12.1 (9.8) | 10.9 (6.9) |
| Gender (male/female) | 302/15 | 68/4 |
| Race, number (%) | ||
| Caucasian | 263 (84%) | 64 (89%) |
| African–American | 39 (12%) | 6 (8%) |
| American Indian/Alaskan Native | 12 (4%) | 3 (4%) |
| Native Hawaiian | 2 (1%) | 2 (3%) |
| Hispanic | 5 (2%) | 0 |
| Other | 5 (2%) | 0 |
| Intraocular pressure, mean (SD), mm Hg | ||
| Technology-assisted eye exam | 15.7 (4.1) | 15.8 (4.0) |
| Comprehensive eye exam | 15.6 (3.2) | 15.6 (3.0) |
| Best eye visual acuity, mean (range) | ||
| Technology-assisted eye exam | ||
| logMAR | 0.11 (0–0.60) | 0.13 (0–0.30) |
| Snellen | 20/25 (20/20–20/80) | 20/25 (20/20–20/40) |
| Comprehensive eye exam | ||
| logMAR | 0.08 (0–0.40) | 0.07 (0–0.30) |
| Snellen | 20/25 (20/15–20/50) | 20/25 (20/15–20/40) |