The Barrett Toric Calculator is an online tool that can be used to calculate the toric intraocular lens (IOL) power and axis for patients with astigmatism who are undergoing cataract surgery. The calculator is based on the Barrett Universal II formula, which is a widely used and validated formula for calculating toric IOL power.
The Barrett Toric Calculator is easy to use and can be accessed online for free. It requires the user to input the patient’s preoperative corneal curvature measurements, the desired postoperative refractive target, and the type of toric IOL to be implanted. The calculator will then generate the recommended IOL power and axis.