Calculation of Unknown Preoperative K Readings in Postrefractive Surgery Patients

Table 3

Differences (in diopters) in 168 right eyes between preoperative keratometry readings and the calculated ones without the knowledge of preoperative parameters.

	Current study	Preoperative mean keratometry = 43.5
Mean	−0.02	−0.43
SD	1.31	1.40
Min	−3.43	−3.98
Max	3.68	3.12
	0.82	<0.01