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Table 2 Relationship between corneal profile and K reading differences

From: Keratometric measurements and IOL calculations in pseudophakic post-DSAEK patients

Difference of Method

Correlated factor

r2

P value

KMaster - TNP

Rposterior/Ranterior

0.19

0.05

central/peripheral CT

0.24

0.03*

central/peripheral GT

0.11

0.16

Sim K- TNP

Rposterior/Ranterior

0.73

< 0.001*

central/peripheral CT

0.42

0.00*

central/peripheral GT

0.29

0.01*

EKR at 4.0 mm - TNP

Rposterior/Ranterior

0.16

0.09

central/peripheral CT

0.16

0.08

central/peripheral GT

0.15

0.09

  1. KMaster Conventional K via IOLMaster, SimK Simulated keratometer reading, EKR Equivalent K reading, TNP True net power, R posterior mean posterior radius of the corneal curvature, R anterior mean anterior radius of the corneal curvature, CT total corneal thickness, GT corneal graft thickness. *p < 0.05