Visual Activity Evoked by Infrared in Humans After Dark Adaptation
Age Related Macular Degeneration, Retinitis Pigmentosa, Congenital Stationary Night Blindness
About this trial
This is an interventional diagnostic trial for Age Related Macular Degeneration focused on measuring Infrared, Dark Adaptation, Vision, Scotopic Threshold Response, Transient Receptor Potential (TRP) Channels, Human
Eligibility Criteria
Inclusion Criteria:
- Normal Vision
- Colorblindness
- Age related macular degeneration
- Congenital Stationary Night Blindness
Exclusion Criteria:
- Diabetes
- Heart disease
- History of eye injury
- History of eye trauma
- History of eye disease except for those specified in the inclusion criteria
- Pregnant women will also be excluded from Aim 2 and 3
- Persons with allergies to adhesives will be excluded from Aim 2 and 3
- Contact dermatitis
- Documented adverse reaction to dilating drops
- Documented adverse reaction to topical anesthetics
- Vulnerable populations
Sites / Locations
- University of New Mexico
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Visual response to IR
Electroretinography
Visual Evoke Potential Test
15 healthy participants will describe IR light passing through narrow bandpass filters over a broad spectrum light source 10 colorblind participants will describe IR light passing through narrow bandpass filters over a broad spectrum light source For both groups, as intensity in increased from 0 to 12 V, participants will say if/when they see a visual response to infrared light from a broad band Tungsten halogen light with narrow bandpass filters ranging from 850 nm to 1400 nm. At the end of three trials per filter, the intensity will be turned up to 12 V, and participants will describe the color they see.
5 healthy participants will undergo an ERG with standard baseline tests followed by similar tests using IR, with standard baseline tests followed by similar tests using IR A total of 15 participants, or five per retinal disease, will be recruited . Retinal diseases include retinitis pigmentosa, age related macular degeneration, congenital stationary night blindness, cataracts. Participants will undergo an ERG with standard baseline tests followed by similar tests using IR, with standard baseline tests followed by similar tests using IR
5 healthy participants will undergo an VEP with standard baseline tests followed by similar tests using IR, with standard baseline tests followed by similar tests using IR A total of 15 participants, or five per retinal disease, will be recruited . Retinal diseases include retinitis pigmentosa, age related macular degeneration, congenital stationary night blindness, cataracts. Participants will undergo an VEP with standard baseline tests followed by similar tests using IR, with standard baseline tests followed by similar tests using IR