Abstract: With the increasing demand for full-range postoperative vision in cataract patients, the extended depth of focus (EDOF) intraocular lens (IOL), represented by the Acrysof IQ Vivity DFT015 based on aspheric wavefront-shaping technology, addresses the compromise between depth-of-field extension and visual disturbances inherent in traditional monofocal and multifocal IOLs. The vivity IOL provides a broader depth-of-field range compared to conventional monofocal IOLs. Through micromonovision design, it enhances near vision in some patients, improves contrast sensitivity, and significantly reduces postoperative photic phenomena such as glare, halos, and starbursts, thereby delivering superior visual quality. Additionally, the Vivity IOL demonstrates broad applicability, showing favorable adaptability and efficacy in patients with comorbid ocular conditions such as glaucoma and epiretinal membranes.

Key words: Functional intraocular lens, Extend depth of focus, Dysphotopsia, Cataract