Sierra Clinical Services LLC

The objectives of this study are to determine the agreement of measurements between the IOLMaster 700 SW Vers. 1.70 and IOLMaster 700 SW Vers. 1.50 and Pentacam, as well as to evaluate the repeatability and reproducibility of the IOLMaster 700 SW Vers 1.70.
The following parameters will be evaluated for Total Keratometry, (TK) and Posterior Corneal Surface (PCS):
cylinder (CYL), Axis (A)
spherical equivalent (SE)
Specific Objectives:
To compare the agreement of SE between IOLMaster 700 SW Vers. 1.70 and IOLMaster 700 SW Vers. 1.50 (Carl Zeiss Meditec AG, Jena, Germany)
To compare the agreement of Cylinder magnitude and axis between IOLMaster 700 SW Version 1.70 and Pentacam
To evaluate the repeatability and reproducibility of the IOLMaster 700 SW Vers. 1.70 for all measurement parameters listed above