Effect of absorptive filters compared to refractive correction on contrast sensitivity among primary open-angle glaucoma patients at Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria.
- Conditions
- Eye Diseases
- Registration Number
- PACTR202407520039845
- Lead Sponsor
- Adelabu Kafayat Omobola
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Pending
- Sex
- All
- Target Recruitment
- 200
1. Glaucoma patients that are 40 years and older and diagnosed more than a year ago.
2. Has primary open-angle glaucoma.
3. Has visual acuity better or equal to logMAR of 1.00 (6/60) in the worse eye.
4. Has a recent (not more than 6 months) central visual field report with reliable indices
1. The presence of media opacities precluding visualization of the fundus such as corneal
pathology, visually significant cataracts (grade 2 or higher lens morphology according to
the Lens Opacities Classification System II (LOCS II), the presence of significant posterior
capsular opacity, vitreous opacities, and hemorrhages.
2. A history of ophthalmic surgeries (corneal refractive, cataract and vitreoretinal surgeries)
that can decrease contrast sensitivity.
3. The presence of macular or retinal disease (age-related macular degeneration and retinal
dystrophies) that can decrease contrast sensitivity.
4. Patients on drugs affecting pupillary size (miotic or mydriatic drugs) that can decrease
contrast sensitivity.
5. Poor vision precluding the ability to fixate on the desired target.
6. The presence of neurological diseases like Parkinson's disease, and Alzheimer’s disease.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Contrast sensitivity score
- Secondary Outcome Measures
Name Time Method Visual acuity with the desired filters