The Visual Field Analysis, VFA, provides the patient refraction at various pupil sizes as well as the level of higher order aberration, enabling objective evaluation of how well the patient sees in various light conditions.

Visual Field Analysis

Best Corrected illustrates how the patient would see the letter “E” before and after corrected for lower order aberrations. The after can be used to set appropriate patient expectations.

Best Corrected
 CT Summary provides the K values and axial and local topography maps CT Summary
 

WF & CT Summary (internal vs cornea) determines if the aberrations are cornea or lenticular.

 WF & CT Summary
 

Spherical, gives the spherical aberration to aid in selection of the correct aspheric IOL.

 Spherical