Status:
COMPLETED
The Effects of Changing Light Levels on Contrast Sensitivity in Patients With Glaucoma
Lead Sponsor:
Portsmouth Hospitals NHS Trust
Conditions:
Glaucoma
Eligibility:
All Genders
40+ years
Brief Summary
The study is a prospective observational study where participants will be recruited from the Ophthalmology department (Outpatient department, Eye Casualty). Only one research visit will be required. P...
Detailed Description
The purpose of our, real world study is to explore contrast sensitivity differences after changes in ambient light setting in patients with glaucoma compared with controls (patients with ocular hypert...
Eligibility Criteria
Inclusion
- • Male or Female, aged 40 years or above.
- Diagnosis of glaucoma (including primary open angle glaucoma, pigment dispersion syndrome, pseudoexfoliation, normal tension glaucoma, chronic angle closure glaucoma, narrow angle glaucoma) or ocular hypertension
- Willing and able to give informed consent for participation in the study.
- Best Corrected Visual Acuity equal or better than 6/12 as measured with the Snellen Chart
Exclusion
- • Neovascular, uveitic, acute angle closure glaucoma
- Non-glaucomatous ocular disease such as AMD, Diabetic retinopathy, Inherited eye diseases
- Visually significant cataracts (Distance VA ≤ 6/12 (0.30 LogMAR) and grade ≥ grade 2 nuclear sclerosis.)
- Current use of miotic glaucoma medication
- Incisional or laser eye surgery within 3 months of enrolment
- Severely impaired cognition
- Self-reported physical ability limiting function (e.g. stroke)
- Unreliable visual fields (SITA Standard or SITA Fast: fixation losses \>20% or false-positive errors \>33% or false-negative errors \>33%)
Key Trial Info
Start Date :
November 20 2018
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
March 16 2021
Estimated Enrollment :
115 Patients enrolled
Trial Details
Trial ID
NCT04061343
Start Date
November 20 2018
End Date
March 16 2021
Last Update
April 7 2023
Active Locations (1)
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1
Portsmouth Hospitals NHS Trust
Portsmouth, Hampshire, United Kingdom, PO6 3LY