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

Not Applicable

Withdrawn

• Conditions: Vision Disorders
• Interventions: Other: fMRI

• Registration Number: NCT02529098
• Lead Sponsor: University Hospital, Toulouse

Brief Summary

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

Detailed Description

Not available

Study Timeline

• Study Start: 2015-06
• Study First Submitted: 2015-06-10
• Study First Submitted QC: 2015-08-18
• Study First Posted: 2015-08-19
• Status Verified: 2016-05
• Last Update Submitted: 2016-05-27
• Last Update Posted: 2016-06-01
• Primary Completion: 2016-07
• Study Completion: 2016-07

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: All
• Target Recruitment: Not specified

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
asymptomatic patients	fMRI	fMRI Asymptomatic patients
symptomatic patients	fMRI	fMRI patients with visual difficulties

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
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

Trial Locations

Locations (1)

UHToulouse; 🇫🇷 Toulouse, France