Luminous Efficiency Function V(λ)' of Patients That Underwent Pseudophakic Presbyopic Corrections With EDOF IOLs
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Phacoemulsification with EDOF IOLs.
- Who it may be relevant to
- Registry conditions: Presbyopia. Basic parameters: 45 years — 75 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Greece
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Impact of Artificial Lighting on Visual Acuity After Presbyopia Correction With an Extended Depth of Focus Intraocular Lens: Introduction of a Modified Luminous Efficiency Function V(λ)'
Overview
Primary objective of this study is to introduce a modified luminous efficiency function that addresses the distinct total eye light transmittance of patients who underwent pseudophakic presbyopic correction with extended-depth of focus (EDOF) intraocular lenses (IOLs) implantations.
Detailed description
Present study aims to identify in which degree EDOF IOLs modify eye light transmission and estimate the necessary task and environmental lighting adjustment in order to address lighting needs of patients following pseudophakic presbyopic corrections implanted with EDOF IOLs. Specifically, the aim of this study is to identify the minimum light intensity at which patients who underwent pseudophakic presbyopic correction with EDOF IOLs can reach their maximum visual acuity (measured when lights are at the 100% lighting level)
Interventions
- Procedure Phacoemulsification with EDOF IOLs
Uneventful pseudophakic presbyopic correction with EDOF IOLs
Primary outcome measures
- Minimum Required Illuminance Level (MRIL) [Time frame: 6 months postoperatively]
Eligibility criteria
Inclusion criteria
- age between 45 to 75 years
Exclusion criteria
- astigmatism >1.00 diopters
- glaucoma
- former incisional eye surgery
- corneal or fundus disease
- diabetes mellitus
- autoimmune diseases
- neurological or psychiatric diseases
- posterior capsule rupture or lens misalignment
- postoperative uncorrected distance visual acuity < 8/10.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Cohort
Study locations
Greece · 1 center
- University Hospital of Alexandroupolis — Alexandroupoli
Publications
- Labiris G, Panagiotopoulou EK, Taliantzis S, Perente A, Delibasis K, Doulos LT. Lighting Standards Revisited: Introduction of a Mathematical Model for the Assessment of the Impact of Illuminance on Visual Acuity. Clin Ophthalmol. 2021 Nov 28;15:4553-4564. doi: 10.2147/OPTH.S326139. eCollection 2021. PMID 34866900
Identifiers
NCT: NCT07077967 · ES5/Th9/13-02-2025