To calculate lens power, Dr. Budo said he uses the SRK-T formula for myopia and the Holladay formula for hyperopia. Photograph courtesy of Camille Budo, MD. Dr. Budo’s first patient to return ...

Not all IOLs that are labeled as +20 D will provide the same postoperative refractive result, even if used in identical eyes. The reason is that while the lens power may actually be +20 D when ...