Modification in Cortical Activation in Pseudophakic Patients With Visual Difficulties After a Multifocal Implantation

Modification in Cortical Activation by Functional Magnetic Resonance Imaging (fMRI) in Pseudophakic Patients With Visual Difficulties After a Multifocal Implantation

Status

Withdrawn

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02529098

Acronym

PlainteIMF

Enrollment

Registered

2015-08-19

Start date

2015-06-30

Completion date

2016-07-31

Last updated

2016-06-01

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

Conditions

Vision Disorders

Keywords

functional magnetic resonance imaging, Lens implantation, pseudophakia

Brief summary

This study will highlight differences in cortical activation between asymptomatic and symptomatic patients.

Interventions

OTHERfMRI

functional magnetic resonance imaging

Study design

Allocation

NON_RANDOMIZED

Intervention model

PARALLEL

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Cataract surgery with an bilateral multifocal lens implant Restor Symptomatic patients : * Symptomatic bilateral visual difficulties for 3 months or more after the intervention which impact the daily activity Asymptomatic patients : * No visual complaint for 3 months or more after the intervention

Exclusion criteria

* Patients with ophthalmology disorders * Contra indication for fMRI

Design outcomes

Primary

Measure	Time frame	Description
Extent of neural activation in visual cortex measured by the number of voxels	1 day	compare the extent of neural activation in visual cortex between groups

Secondary

Measure	Time frame	Description
extent of neural activation in visual cortex measured by the number of voxels	1 day	compare the extent of neural activation in the different area visual cortex between groups

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026