Luminous Efficiency Function V(λ)' of Patients That Underwent Pseudophakic Presbyopic Corrections With EDOF IOLs

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)'

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07077967

Acronym

V(λ)'_EDOF

Enrollment

100

Registered

2025-07-22

Start date

2025-10-15

Completion date

2026-12-15

Last updated

2026-02-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Presbyopia

Keywords

pseudophakic presbyopic correction, EDOF intraocular lens, light intensity, eye light transmittance, light efficiency function

Brief summary

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

PROCEDUREPhacoemulsification with EDOF IOLs

Uneventful pseudophakic presbyopic correction with EDOF IOLs

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

45 Years to 75 Years

Healthy volunteers

Yes

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.

Design outcomes

Primary

Measure	Time frame	Description
Minimum Required Illuminance Level (MRIL)	6 months postoperatively	Minimum Required Illuminance Level (MRIL) (in lx) at which participants reach their optimal Uncorrected Distance Visual Acuity.

Countries

Greece

Contacts

CONTACTEirini - Kanella Panagiotopoulou, MD, MSc, PhD

panagiotopoulou.ek@gmail.com+30 6978730858

CONTACTGeorgios Labiris, MD, Prof

labiris@usa.net+30 2551030990

STUDY_CHAIRGeorgios Labiris, MD, Prof

Democritus University of Thrace

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026