Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Can I use the “LARS” method to compensate for axis rotation of ACUVUE TORIC?

April 26, 2017acuvue axis compensate lars method rotation toric

0

Posted

Can I use the “LARS” method to compensate for axis rotation of ACUVUE TORIC?

1 Answer

0

Posted

Yes, you can use the “LARS” method to compensate for axis rotation of ACUVUE® TORIC. However, with the scribe marks in the horizontal meridian, ‘left’ vs. ‘right’ rotation can be confusing. Therefore, thinking “clockwise” and “counterclockwise” may be easier. Clockwise (into the future) means adding to the refractive axis, and counterclockwise (back in time) means taking away from the refractive axis. Example: Spectacle Rx: -3.00-1.25X 10. After stabilization, the initial ACUVUE® TORIC diagnostic lens rotates counterclockwise 20 degrees. The compensated lens should be: -3.00-1.25 X 170.