An interventional study of LSFG-NAVI in Ischemic Optic Neuropathy, Branch Retinal Artery Occlusion and Hemianopia, sponsored by Randy Kardon. Recruiting at 1 site in United States. Open to participants aged 18 Years to 99 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-08.
Sponsored by Randy Kardon · Not applicable, Interventional, and Diagnostic
This study investigates a new technology to assess the structure and function inside the eye. Retinal imaging of subjects with inner and outer retinal defects to detect areas of abnormal structure and function compared to other visual function tests.
Controls:
Inclusion:
Normal eye exam in last 2 years
Exclusion:
Cataract or media opacity that would degrade the imaging of the retina. Mild cataracts are okay. Any abnormalities of the retina or optic nerve that could affect metabolism of the retina outside of normal.
Subjects with Inner Retina Defect:
Inclusion:
Defined structural defect to include those with Ischemic optic neuropathy, branch retinal artery occlusion (BRAO), hemianopia or visual field defect that respects the vertical meridian, inherited mitochondrial optic neuropathies such as Leber's and Dominant Optic Neuropathy, other retinopathies or optic neuropathies.
Exclusion:
Cataract or media opacity that would degrade the imaging of the retina. Mild cataracts are okay.
Subjects with Outer Retinal Defect:
Inclusion:
AZOOR (acute zonal occult outer retinopathy) or other focal or diffuse outer photoreceptor loss of function
Exclusion:
Cataract or media opacity that would degrade the imaging of the retina. Mild cataracts are okay.
The 450 total is to allow for exclusion of some subjects or in the event that the enrolled subject blinks too much or cannot fixate on a visual target adequately to maintain the same eye position during the short imaging interval. We hope to have a total of 450 (50 controls and 400 patients)
Device: LSFG-NAVI
laser-speckle blood flow of ocular arteries and veins
Ocular Blood Flow
imaging the movement of blood through blood vessels in retina and optic nerve
Time frame: 1 day
Plan to share: No
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Randy Kardon