Alpha and Kappa angle on postoperative visual quality in cataract surgery

The patients with older age, flatter K and shorter WTW should be alert to the possibility of larger Alpha angle and Kappa angle. Alpha angle should also consider the factor of AL. When selecting patients with MIOLs implantation, there is no need to consider the Alpha angle. Careful consideration should be given to the Kappa angle, and the preoperative standard of <0.5 mm can refer to △Kappa=1.136-0.021×AL-0.013×K and be appropriately relaxed.