Table 1.
Comparison of demographics, posterior vitreous status, and psychologic parameters between patients with symptomatic floaters and control.
| Symptomatic floaters (n = 61) | No floaters (n = 34) | p valuesa | |
|---|---|---|---|
| Age, yrs | 56.5 ± 10.3 | 56.3 ± 10.0 | 0.951 |
| Female, n (%) | 41 (67) | 22 (65) | 0.804 |
| Diabetes mellitus, n (%) | 9 (15) | 6 (18) | 0.711 |
| Hypertension, n (%) | 20 (33) | 7 (21) | 0.206 |
| Education, yrs | 11.5 ± 3.4 | 10.7 ± 2.4 | 0.278 |
| Outdoor occupation, n (%) | 6 (9.8) | 0 | 0.090 |
| Visual acuity (logMAR) | 0.06 ± 0.13 | 0.03 ± 0.07 | 0.102 |
| Refractive errors (SEQ), diopters | −0.9 ± 3.2 | 0.2 ± 2.6 | 0.101 |
| Pseudophakia, n (%) | 4 (7) | 1 (3) | 0.652 |
| PVD grading, n (%) | 0.011 | ||
| No PVD | 9 (15) | 9 (27) | |
| Partial PVD | 4 (7) | 9 (27) | |
| Complete PVD | 48 (79) | 16 (47) | |
| Depression (PHQ-9) | 6.5 ± 6.3 | 2.3 ± 2.3 | <0.001 |
| Stress (PSS) | 16.8 ± 6.7 | 14.2 ± 4.4 | 0.027 |
| Anxiety (STAI) | |||
| State anxiety | 43.2 ± 12.6 | 37.9 ± 8.0 | 0.014 |
| Trait anxiety | 43.2 ± 10.8 | 39.1 ± 8.4 | 0.058 |
aStudent's t-test and chi-square test or Fisher's exact test used for continuous and categorical variables, respectively. logMAR: logarithm of minimal angle of resolution; PHQ-9: Patient Health Questionnaire-9; PSS: Perceived Stress Scale; PVD: posterior vitreous detachment; SEQ: spherical equivalent; STAI: State-Trait Anxiety Inventory.