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Table 2 Pearson correlation coefficient (C) between the Auto K and Sim K measurements for both gonioscopes.

From: The effect of Gonioscopy on keratometry and corneal surface topography

  Time C*
Goldmann PreGonio 0.789
  <5 mins 0.481
  5–15 mins 0.619
  20–25 mins 0.611
Sussman PreGonio 0.817
  <5 mins 0.538
  5–15 mins 0.636
  20–25 mins 0.740
  1. * Correlation is significant at the 0.01 level; mins – minutes