Table 4.
Comparison of characteristics of vitreous floater symptoms according to the degree of discomfort.
| Mild discomfort (n = 20) | Moderate discomfort (n = 24) | Severe discomfort (n = 17) | p valuesa | |
|---|---|---|---|---|
| Onset of discomfort, n (%) | 0.046 | |||
| One or two days ago | 3 (15) | 0 | 6 (35) | |
| Within weeks | 1 (5) | 12 (50) | 4 (24) | |
| Within months | 2 (10) | 6 (25) | 0 | |
| Several months ago | 9 (45) | 4 (17) | 3 (18) | |
| Several years ago | 5 (25) | 2 (8) | 4 (24) | |
| Daily frequency of discomfort, n (%) | <0.001 | |||
| ≤1 | 7 (35) | 0 | 2 (12) | |
| 2~3 | 8 (40) | 6 (25) | 0 | |
| 4~9 | 1 (5) | 9 (38) | 4 (24) | |
| ≥10 | 4 (20) | 9 (38) | 11 (65) | |
| Discomfort severity change, n (%) | 0.017 | |||
| Getting better | 9 (45) | 2 (8) | 2 (12) | |
| Stationary | 9 (45) | 13 (54) | 10 (59) | |
| Getting worse | 2 (10) | 9 (38) | 5 (29) | |
| Floater type, n (%) | 0.006 | |||
| 1–3 floaters | 11 (55) | 7 (29) | 4 (24) | |
| 3–10 floaters | 9 (45) | 10 (42) | 7 (41) | |
| >10 floaters | 0 | 5 (21) | 2 (12) | |
| A curtain or cloud | 0 | 2 (8) | 4 (24) | |
| Daily frequency of photopsia, n (%) | 0.002 | |||
| ≤1 | 19 (95) | 22 (92) | 9 (53) | |
| 2~3 | 0 | 2 (8) | 5 (29) | |
| 4~9 | 0 | 0 | 2 (12) | |
| ≥10 | 1 (5) | 0 | 1 (6) |
aCuzick's Wilcoxon-type nonparametric trend test.