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Table 4 Comparison of TCT by PENTACAM And OCT among the studied groups

From: Comparison of corneal measurements in normal and keratoconus eyes using Anterior Segment Optical Coherence Tomography (AS-OCT) and Pentacam HR topographer

Variable

KC group

Control group

t-testa

P value

(n = 62)

(n = 48)

TCT by PENTACAM:

 Mean ± SD

  Range

470.9 ± 44.2

541.9 ± 29.4

-9.584

 < 0.001

 

329—567

489—612

 

(HS)

TCT by

 OCT:

  Mean ± SD

455.7 ± 46.6

518.7 ± 26.2

-8.377

 < 0.001

  Range

252—558

475—584

 

(HS)

  Pb:

0.06 (NS)

 < 0.001 (HS)

  
  1. HS Highly significant difference (p < 0.001), S Significant difference (p < 0.05)
  2. at-test between KC and control groups
  3. bt-test between PENTACAM and OCT