Seoul Daabom Eye Center Cheongju 28568 Republic of Korea;
Department of Ophthalmology Ansan Hospital Korea University College of Medicine.Seoul 15355 Republic of Korea;
Department of Ophthalmology Ansan Hospital Korea University College of Medicine.Seoul 15355 Republic of Korea;
Department of Ophthalmology Ansan Hospital Korea University College of Medicine.Seoul 15355 Republic of KoreaBGN World Tower Eye Clinic Seoul 05551 Republic of Korea;
Department of Ophthalmology Yeouido St.Mary''s Hospital College of Medicine the Catholic University of Korea Seoul 07345 Republic of Korea;
Joeunnun Vision Clinic Seoul 06134 Republic of Korea;
Department of Ophthalmology Ansan Hospital Korea University College of Medicine.Seoul 15355 Republic of Korea;
Department of Ophthalmology Ansan Hospital Korea University College of Medicine.Seoul 15355 Republic of Korea;
halos; intraocular lens; diffractive bifocal; multifocal; rainbow halos;