Table 2. Summary of Fornix depth measurement data using different FDM devices 10, 11 .
| Age decade | Type of FDM | Ethnic group | Lower FD (mm) | Upper FD (mm) |
|---|---|---|---|---|
| 20s | Schwab | Not specified | 12.9 (12.6–13.2) | No data |
| Moorfields | White British (all) | 11.2 (8.2–14.3) | 16.3 (13.9–18.7) | |
| Khan | South Asian (female) | 11.0 (7.0–15.1) | 16.1 (10.6–23.2) | |
| South Asian (male) | 11.8 (7.7–15.8) | 16.5 (11.0–23.6) | ||
| Moorfields | White British (female) | 11.1 (8.3–13.9) | 16.3 (13.8–18.8) | |
| White British (male) | 11.4 (8.1–14.8) | 16.3 (13.9–18.7) | ||
| 30s | Schwab | Not specified | 12.7 (12.5–13.0) | No data |
| Moorfields | White British (all) | 11.3 (8.9–13.7) | 15.9 (13.4–18.5) | |
| Khan | South Asian (female) | 11.3 (7.3–15.3) | 15.0 (9.5–22.1) | |
| South Asian (male) | 11.9 (7.9–16.0) | 17.2 (11.7–24.3) | ||
| Moorfields | White British (female) | 11.1 (9.0–13.3) | 15.6 (13.1–18.0) | |
| White British (male) | 11.6 (9.0–14.3) | 16.5 (14.3–18.8) | ||
| 40s | Schwab | Not specified | 11.8 (11.5–12.2) | No data |
| Moorfields | White British (all) | 11.2 (8.3–14.1) | 15.9 (12.5–19.4) | |
| Khan | South Asian (female) | 10.6 (6.6–14.6) | 15.1 (9.5–22.2) | |
| South Asian (male) | 11.6 (7.6–15.7) | 16.0 (10.5–23.1) | ||
| Moorfields | White British (female) | 10.6 (8.2–13.7) | 15.1 (12.2–18.0) | |
| White British (male) | 11.5 (8.6–14.5) | 16.4 (13.0–19.8) | ||
| 50s | Schwab | Not specified | 11.3 (11.1–11.6) | No data |
| Moorfields | White British (all) | 10.9 (8.2–13.7) | 15.7 (12.1–19.2) | |
| Khan | South Asian (female) | 10.0 (6.0–14.0) | 14.1 (8.5–21.2) | |
| South Asian (male) | 10.8 (6.7–14.8) | 15.1 (9.6–22.2) | ||
| Moorfields | White British (female) | 10.7 (8.5–12.8) | 15.4 (11.6–19.1) | |
| White British (male) | 11.6 (8.0–15.1) | 16.4 (14.0–18.7) | ||
| 60s | Schwab | Not specified | 11.0 (10.8–11.2) | No data |
| Moorfields | White British (all) | 11.0 (8.3–13.6) | 15.8 (13.0–18.6) | |
| Khan | South Asian (female) | 9.9 (5.9–13.9) | 14.1 (8.5–21.1) | |
| South Asian (male) | 11.0 (7.0–15.0) | 15.6 (10.0–22.7) | ||
| Moorfields | White British (female) | 10.9 (8.2–13.7) | 15.6 (12.7–18.4) | |
| White British (male) | 11.0 (8.5–13.6) | 16.0 (13.3–18.7) | ||
| 70s | Schwab | Not specified | 10.6 (10.3–10.9) | No data |
| Moorfields | White British (all) | 10.5 (7.8–13.2) | 14.8 (11.7–17.8) | |
| Khan | South Asian (female) | 9.9 (5.9–13.9) | 13.8 (8.2–20.9) | |
| South Asian (male) | 10.5 (6.5–14.5) | 14.4 (8.8–21.5) | ||
| Moorfields | White British (female) | 10.2 (7.6–12.8) | 14.1 (12.5–15.7) | |
| White British (male) | 11.0 (8.3–13.7) | 15.8 (12.2–19.4) | ||
| 80s | Schwab | Not specified | 10.2 (9.8–10.5) | No data |
| Moorfields | White British (all) | 10.0 (7.4–12.7) | 15.2 (11.6–18.8) | |
| Khan | South Asian (female) | No data | No data | |
| South Asian (male) | No data | No data | ||
| Moorfields | White British (female) | 9.6 (7.3–11.9) | 14.7 (11.3–18.1) | |
| White British (male) | 10.8 (8.2–13.4) | 16.1 (12.9–19.3) | ||
| Overall | Schwab | Not specified (all) | 11.5 (11.2–11.8) | No data |
| Khan | South Asian (all) | 10.9 (6.9–14.9) | 15.3 (9.7–22.3) | |
| Moorfields | White British (all) | 10.9 (8.0–13.7) | 15.6 (12.5–18.8) |
Abbreviations: FDM, Fornix depth measurer; FD, Fornix depth.