The Wortz-Gupta® formula has only been studied for correction of corneal astigmatism < 1.25D using a femtosecond laser at a 9.0mm optical zone and 80% depth, opened manually at time of cataract surgery. This calculator is not intended to be a substitute for surgical judgment. Surgeons should always use their own judgment when deciding upon treatment based on all factors available. User discretion is advised. For comments or suggestions, please contact email@example.com.