Visual Performance Of A Novel Combined Extended Depth Of Focus Intraocular Lens System
Published 2025 - 43rd Congress of the ESCRS
Reference: FP01.01 | Type: Free paper | DOI: 10.82333/75f2-a449
Authors: Lutz Blomberg* 1 , Yassine Naja 1 , Imke Wübbolt 1 , Naouras Arroum 1 , Martin Knabe 1
1Ophthalmology,Eye Center Hildesheim-Alfeld,Hildesheim,Germany
Purpose
To evaluate visual acuity, contrast sensitivity, and ocular aberrations following implantation of a novel combined extended depth of focus (EDOF) intraocular lens (IOL) system.
Setting
A prospective, consecutive study included patients presented with bilateral cataract and were subjected to cataract surgery in Watany Eye Hospital.
Methods
Inclusion criteria included eyes with absence of concomitant ocular disease (excluding cataract), total corneal astigmatism <1.00D, and axial length between 21.0-25.0 mm. Patients were categorized into bilateral EDOF IOLs (MINI WELL) and combined EDOF IOLs (FUSION) groups. For the Fusion group, EDOF (MINI WELL) IOL was implanted in the first eye, near-vision enhanced EDOF (PROXA) IOL in the second eye irrespective to ocular dominance. Distance (DVA), intermediate (IVA), and near (NVA) visual acuity were measured at 4m, 66cm, and 35cm, respectively. Subjective photic phenomena were graded on a 0-5 scale. Mesopic ocular aberrations were assessed using OPD-III aberrometry. All study parameters were recorded 2-3 months after the surgery.
Results
Binocularly, no significant differences were observed between groups for UDVA and CDVA, or UIVA and DCIVA. However, UNVA and corrected DCNVA were significantly better in the combined EDOF IOL group (logMAR 0.02 ± 0.04 and 0.02 ± 0.03, respectively) compared to the bilateral EDOF IOL group (logMAR 0.2 ± 0.06 and 0.2 ± 0.07, respectively). Defocus curves demonstrated the combined EDOF IOL group maintained logMAR visual acuity of 0.1 up to -2.7D defocus, compared to -1.6D in the bilateral EDOF IOL group. No significant differences were found in mesopic pupil ocular HOAs. Subjective photic phenomena were similar between groups. Occasional reading glasses use was reported by 60% (bilateral) and 20% (combined) of patients.
Conclusions
The combined EDOF IOL strategy preserved distance and intermediate visual acuity while significantly enhances near visual acuity The the range of comfortable and functional near vision is extended to 35cm with minimal dysphotopsia