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Table 2 Baseline information of eyes by group with CCT matched

From: Comparisons of corneal biomechanical and tomographic parameters among thin normal cornea, forme fruste keratoconus, and mild keratoconus

Parameters TNC (N = 50) FFKC (N = 50) MKC (N = 50) Statistics P
Gender (male/female) 26/24 24/26 27/23 0.374 0.830
Age (years) 24 (17–28) 22 (16–36) 24 (17–32) 2.212 0.331
CCT (μm) 495 (470–507) 495 ± 14 490 ± 14 3.604 0.165
TCT (μm) 492 (467–499) 491 (459–500) 481 (454–500)# 6.535 0.038
bIOP (mmHg) 14.1 ± 2.1 14.7 (11.3–20.4) 14.2 (10.8–20.7) 3.135 0.209
  1. TNC thin normal cornea; FFKC forme fruste keratoconus; MKC mild keratoconus; CCT central corneal thickness; TCT thinnest corneal thickness; bIOP biomechanically corrected intraocular pressure
  2. P value is for differences between the three groups, #represents statistically significant difference with TNC and MKC