Keratometric measurements and IOL calculations in pseudophakic post-DSAEK patients

BMC Ophthalmology

Table 3 Arithmetic error and absolute error of prediction using different K readings

Method	n	Arithmetic Error (D)			Absolute Error (D)
Method	n	Mean(D) ± SD	Minimum - Maximum	Range	Mean(D) ± SD	Minimum - Maximum	Range
K_Master	20	0.44 ± 1.02	−1.70 to 2.32	4.02	0.89 ± 0.63	0.01 to 2.32	2.31
SimK	20	0.32 ± 1.03	−1.90 to2.32	4.22	0.82 ± 0.68	0.05 to 2.32	2.27
EKR	20	−0.05 ± 1.02	−2.40 to 1.91	4.31	0.74 ± 0.68	0.03 to 2.40	2.37
TNP	20	−1.35 ± 1.06	−3.90 to 0.76	4.66	1.42 ± 0.95	0.05 to 3.90	3.85

K_Master conventional K via IOLMaster, SimK simulated keratometer reading, EKR equivalent K reading, TNP true net power

ISSN: 1471-2415