Table 2 One year prevalence of CVS symptoms lasting for at least one week during the previous year and severity
N | All prevalence % (95 % CI) (n = 2210) | Males prevalence % (95 % CI) (n = 1122) | Females prevalence % (95 % CI) (n = 1088) | p value* | |
|---|---|---|---|---|---|
Pain in and around the eyes | 634 | 28.7 (26.8–30.6) | 27.8 (25.2–30.5) | 29.6 (26.9–32.4) | NS |
Headache | 1010 | 45.7 (43.6–47.8) | 38.1 (35.2–41.0) | 53.5 (50.5–56.5) | <0.05 |
Blurred near vision | 526 | 23.8 (22.0–25.6) | 24.6 (22.1–27.2) | 23 (20.5–25.6) | NS |
Blurred distant vision | 444 | 20.1 (18.4–21.8) | 19.6 (0.4–40.5) | 20.6 (18.2–23.1) | NS |
Dry eyes | 688 | 31.1 (29.1–33.1) | 30.8 (28.1–33.6) | 31.4 (28.7–34.3) | NS |
Sore/irritated eyes | 578 | 26.2 (24.4–28.1) | 25.3 (22.8–27.9) | 27 (24.4–29.8) | NS |
Red eyes | 400 | 18.1 (16.5–19.8) | 21.9 (19.5–24.5) | 14.2 (12.1–16.4) | <0.05 |
Excessive tearing | 460 | 20.8 (19.1–22.6) | 23.2 (20.7–25.8) | 18.4 (16.1–20.8) | <0.05 |
Double vision | 302 | 13.7 (12.3–15.2) | 15 (12.9–17.2) | 12.3 (10.4–14.4) | NS |
Twitching of eye lids | 452 | 20.5 (18.8–22.2) | 21 (18.7–23.5) | 19.9 (17.6–22.5) | NS |
Changes in visualizing colours | 206 | 9.3 (8.1–10.6) | 12.7 (10.8–14.7) | 5.9 (4.6–7.5) | <0.05 |
Severity of CVS | |||||
Mild-moderate cases | 300 | 42.1 (39.1–45.3) | 44.7 (40.4–49.5) | 55.3 (49.7–60.9) | <0.05 |
Severe cases | 412 | 57.9 (54.7–60.9) | 54.9 (50.0–59.6) | 45.1 (39.1–50.3) | NS |