Status:
COMPLETED
Improving Vision in Adults With Macular Degeneration
Lead Sponsor:
University of Waterloo
Collaborating Sponsors:
The Hong Kong Polytechnic University
Conditions:
Macular Degeneration
Eligibility:
All Genders
18+ years
Phase:
NA
Brief Summary
The purpose of this study is to test whether a kind of brain stimulation called anodal transcranial direct current stimulation (a-tDCS) can improve the ability of people with age-related macular degen...
Detailed Description
This study will be carried out in Ontario, Canada (University of Waterloo) and Hong Kong (The Hong Kong Polytechnic University). There are two conditions: Active brain stimulation and sham/placebo bra...
Eligibility Criteria
Inclusion
- Diagnosis of AMD (age 60+) or JMD (current age 18+).
- Central vision loss and use of a peripheral preferred retinal locus (PRL) to fixate on visual objects, as confirmed by a microperimeter.
- Visual acuity (VA); between 0.5 and 1.0 logMAR inclusive (6/18-6/60) in the better eye.
- Best-corrected near visual acuity of 4.0M at 40 cm or better in the better eye
- Stable vision for the previous 3 months (by patient report).
Exclusion
- Diagnosed dementia.
- Not fluent in reading English (Waterloo) or Chinese characters (Hong Kong).
- Any ocular surgery (including anti-vegF injections) within the duration of the study.
- Ocular pathology other than JMD or AMD that can reduce central vision.
- Severe hearing impairment.
- Contraindications for brain stimulation
Key Trial Info
Start Date :
December 1 2019
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
March 1 2022
Estimated Enrollment :
21 Patients enrolled
Trial Details
Trial ID
NCT04111068
Start Date
December 1 2019
End Date
March 1 2022
Last Update
April 29 2022
Active Locations (2)
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1
University of Waterloo
Waterloo, Ontario, Canada, N2L 3G1
2
The Hong Kong Polytechnic University
Hung Hom, Kowloon, Hong Kong