Clinical Outcomes With a Low Add Multifocal and an Extended Depth of Focus Intraocular Lenses Both Implanted With Mini-monovision
Clinical Outcomes With a Low Add Multifocal and an Extended Depth of Focus Intraocular Lenses Both Implanted With Mini-monovision
The innovations in phacoemulsification surgery and advances in surgical equipment ensure a safe extraction of the crystalline lens and implantation of intraocular lenses (IOL). As a result of developing intraocular lens technologies and changing patient demands, many multifocal, accommodative, toric, toric-multifocal, and extended depth of focus (EDOF) IOLs have been introduced and the original aim of restoration of far vision with implanted monocular IOLs has been evolved to an objective of improved vision at different distances with total spectacle independence. This study aimed to compare the visual acuity at different distances, contrast sensitivity, spectacle needs, photic phenomena, and quality of life parameters of patients bilaterally implanted with a low add bifocal (Tecnis ZKB00) or an EDOF IOL (Tecnis Symfony), both with planned mini-monovision to improve near vision.
The innovations in phacoemulsification surgery and advances in surgical equipment ensure a safe extraction of the crystalline lens and implantation of intraocular lenses (IOL). As a result of developing intraocular lens technologies and changing patient demands, many multifocal, accommodative, toric, toric-multifocal, and extended depth of focus (EDOF) IOLs have been introduced and the original aim of restoration of far vision with implanted monocular IOLs has been evolved to an objective of improved vision at different distances with total spectacle independence. This study aimed to compare the visual acuity at different distances, contrast sensitivity, spectacle needs, photic phenomena, and quality of life parameters of patients bilaterally implanted with a low add bifocal (Tecnis ZKB00) or an EDOF IOL (Tecnis Symfony), both with planned mini-monovision to improve near vision. In this regard, binocular logMAR uncorrected visual acuities (UVA), monocular defocus curves, CS with CSV 1000-E and Pelli-Robson Test (PRT), spectacle needs and quality of life parameters with NEI RQL-42 questionnaire were evaluated at postoperative 1, 3, and 6 months.
Inclusion Criteria:
Inclusion criteria were patients with bilateral visually significant cataract seeking spectacle independence, especially at far and intermediate distances, age of ≥18 years, preoperative corneal astigmatism less than 1.00 D, axial length (AL) between 21 - 26.5 mm, and availability to attend all follow-up visits.
Exclusion Criteria:
Patients were excluded from the study if any of the following conditions were present: high visual demand for near vision, amblyopia, glaucoma, corneal opacity, severe/moderate to severe dry eye, pupillary abnormalities and dysfunction, corneal astigmatism ≥1.00 D, AL <21 mm or ≥26.5 mm, diabetes mellitus with retinal changes, active uveitis or history of uveitis, previous ocular surgery and lack of attendance to any follow-up visit.