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Demographic data.
| Total (n = 62) | Normal (n = 25) | FFKC (n = 14) | KC (n = 23) | N vs. FFKC (P value) | |
|---|---|---|---|---|---|
| Median Age (years) | 29.0 | 32.0 | 29.5 | 27.0 | 0.85 |
| Age Range (years) | 16–39 | 16–36 | 20–39 | 20–39 | |
| Male (%) | 75.8 | 64.0 | 78.6 | 90.0 | 0.36 |
| Median BSCVA (logMAR) | −0.08 | −0.18 | −0.08 | 0.22 | 0.07 |
| BSCVA Range | −0.30–1.40 | −0.30–0.00 | −0.30–0.00 | −0.18–1.40 |
FFKC: forme fruste keratoconus, KC: keratoconus, N: Normal, BSCVA: best spectacle-corrected visual acuity, logMAR; logarithm of Minimum Angle of Resolution.
