Demographic characteristics
| Variables | Value (mean±SD) | |
|---|---|---|
| Age (years) | 66.87±4.53 (range 60–79) | |
| Gender | 133 men, 183 women | |
| Medical history* n (%) | ||
| Arterial hypertension | 149 (47.15%) | |
| Type 2 diabetes mellitus | 18 (5.70%) | |
| Conditions after stroke | 7 (2.22%) | |
| Coronary heart disease, myocardial infarction, stents or bypass surgery | 25 (7.91%) | |
| Asthma or other allergies | 94 (29.75%) | |
| Hyper- or hypothyreosis | 63 (19.94%) | |
| Oesophageal reflux | 5 (1.58%) | |
| Migraine | 16 (5.06%) | |
| Psoriasis | 8 (2.53%) | |
| Rheumatoid arthritis | 10 (3.16%) | |
| Hypercholesterinemia | 23 (7.28%) | |
| Kidney stone | 10 (3.16%) | |
| Tinnitus | 3 (0.95%) | |
| Benign prostate hyperplasia† | 11 (8.27%) | |
| Cardiac dysrhythmia or other cardiac valve diseases | 22 (6.96%) | |
| Other malignancies | 36 (11.39%) | |
| Other surgeries | 17 (5.38%) | |
| Right eye | Left eye | |
| Spherical refraction (diopter) | 0.83±2.00 (range −6.25–6.00) | 0.83±2.06 (range −7.50–7.00) |
| Best corrected visual acuity (LogMAR) | 0.02±0.05 (range −0.20–0.10) | 0.02±0.05 (range −0.20–0.10) |
| Lens status n (%) | 303 (95.90%) phakic 13 (4.10%) pseudophakic | 303 (95.90%) phakic 13 (4.10%) pseudophakic |
| Vitreous attachment to fovea n (%) | 47 (14.90%) detached 269 (85.10%) attached | 57 (18.00%) detached 259 (82.00%) attached |
*Multiple diagnosis for one subject possible.
†Only for male subjects. Percentage calculated only for men.
LogMAR, logarithm of the minimum angle of resolution.