Retinal Blood Flow Assessment for Glaucoma
Trial Summary
What is the purpose of this trial?
The purpose of this study is to establish autoregulation of retinal blood flow in arterioles and capillaries as a biomarker for early primary open angle glaucoma.
Will I have to stop taking my current medications?
If you have early glaucoma, you will need to stop taking your glaucoma medications for four weeks before participating in the study. If you cannot safely stop these medications, you may not be eligible to participate.
What data supports the effectiveness of the treatment Indocyanine Green Angiography and Ocular Imaging with Optical Coherence Tomography (OCT) and Adaptive Optics (AO) for glaucoma?
Research shows that Optical Coherence Tomography Angiography (OCT-A) is effective in analyzing retinal blood flow, which is important for understanding and monitoring glaucoma. Additionally, Adaptive Optics (AO) combined with OCT provides high-resolution images of the retina, helping to visualize microscopic structures and potentially detect early glaucomatous changes.12345
Is the retinal imaging technology used in the clinical trial safe for humans?
How does the treatment in the Retinal Blood Flow Assessment for Glaucoma trial differ from other treatments for glaucoma?
This treatment uses optical coherence tomography angiography (OCTA) to non-invasively measure and analyze retinal blood flow, which is unique compared to traditional glaucoma treatments that focus on reducing intraocular pressure through medication, laser, or surgery. OCTA provides detailed insights into blood flow and vessel density, potentially offering a more tailored approach to managing glaucoma progression.19101112
Eligibility Criteria
This trial is for adults over 18 with early or pre-perimetric glaucoma, and a control group without glaucoma. Participants must not have had ocular surgery (except cataract surgery/laser trabeculoplasty), no diabetes/hypertension/vascular disorders, no retinal diseases affecting the nerve layer, non-smokers for at least 6 months, and able to be off glaucoma meds for four weeks.Inclusion Criteria
Exclusion Criteria
Trial Timeline
Screening
Participants are screened for eligibility to participate in the trial
Baseline Assessment
Initial assessment of retinal blood flow and autoregulation using EMAf and mAO techniques
Treatment
Participants receive isocapnic oxygen to evaluate retinal blood flow response
Follow-up
Participants are monitored for changes in retinal blood flow and autoregulation over time
Treatment Details
Interventions
- Indocyanine Green Angiography (Diagnostic Test)
- Isocapnic Oxygen (Gas)
- Ocular Imaging with Optical Coherence Tomography (OCT) and Adaptive Optics (AO) (Diagnostic Test)