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Table 4 Tomographic data before fitting and after 3 months of contact lens wear

From: Characterization and prediction of the clinical result with a specific model of mini-scleral contact lens in corneas with keratoconus

Variable

Pre-fitting

After 3 months of CL wear

Mean (SD)

Median (range)

Mean (SD)

Median (range)

P value

Kmant (D)

48.91 (1.64)

48.80 (42.03 to 63.24)

50.28 (5.08)

48.87 (42.86 to 64.47)

0.594

Astant (D)

4.60 (0.98)

4.11 (1.12 to 12.55)

6.55 (3.44)

5.20 (0.87 to 13.69)

0.513

Qant

 − 0.93 (0.22)

 − 0.92 (− 2.28 to 0.61)

 − 1.23 (0.54)

 − 1.06 (− 2.56 to 0.43)

0.813

Kmpost (D)

 − 7.54 (0.39)

 − 7.54 (− 11.32 to − 6.17)

 − 7.83 (1.17)

 − 7.89 (− 11.32 to − 6.22)

0.575

Astpost (D)

0.93 (0.17)

1.03 (0.09 to 1.66)

1.07 (0.37)

1.14 (0.40 to 1.90)

0.735

Qpost

 − 1.15 (0.25)

 − 0.98 (− 3.18 to − 0.44)

 − 1.41 (0.61)

 − 1.21 (− 3.04 to − 0.49)

0.635

MCT(μm)

442.79 (24.98)

455.00 (313 to 554)

421.89 (48.52)

432.00 (322 to 551)

0.276

CCT (μm)

485.38 (26.05)

484.00 (340 to 558)

457.55 (42.27)

481.00 (342 to 556)

0.343

  1. SD = standard deviation; D = diopters; Qant = asphericity of the anterior corneal surface; Qpost = asphericity of the posterior corneal surface; Kmant = anterior mean keratometry; Kmpost = posterior mean keratometry; Astant = anterior astigmatism; Astpost = posterior astigmatism; MCT = minimal corneal thickness; CCT = central corneal thickness