Prospective Clinical Study of Preoperative and Postoperative Unilateral Mild Cataract Patients

Inclusion Criteria: * Patients who had monocular intraocular lens in one eye with mild cataract in the fellow eye ask for the cataract surgery in the fellow eye * Regular corneal topography and corneal astigmatism ≤ 0.75 Diopter Exclusion Criteria: * Pregnant or nursing women * In the presence of other ocular diseases that may affect the stability of the lens capsule (pseudoexfoliation syndrome, glaucoma, traumatic cataract, Marfan syndrome, etc.) * In the presence of other ocular diseases that is expected to have a poor final visual acuity of worse than 0.2 logMAR after surgery (amblyopia, strabismus, keratoconus, etc.) * Pupil abnormality (non-reactive pupil, tonic pupils, abnormally shaped pupils, etc.) * Patients using systemic or ocular medication that affect visual acuity. * Patients with history of ocular trauma or prior ocular surgery including refractive procedures * Patients participating in other clinical trials during the study.