Clinical trials: Evoked Potentials, Visual
Age Related Macular Degeneration, Retinitis Pigmentosa
Visual Activity Evoked by Infrared in Humans After Dark Adaptation
This pilot study will evaluate the visual response to infrared (IR) in humans after dark adaptation. The investigators plan to determine which wavelength and intensity the human eye is most sensitive to in healthy and color-blind…
- Conditions
- Age Related Macular Degeneration, Retinitis Pigmentosa, Congenital Stationary Night Blindness, Colorblindness
- Trial name
- NCT02909985
- Testing
- Tungsten halogen light with narrow bandpass filters
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of New Mexico
Glaucoma
Are There Changes in the Nerve Fiber Layer (NFL) After Lowering of Eye Pressure?
The aim of this study was to evaluate structural and functional improvement after lowering intraocular pressure (IOP) in patients with glaucoma using Spectral Domain Optical Coherence Tomography (SD-OCT), Visual Field (VF)…
- Trial name
- NCT02600403
- Testing
- Optical Coherence Tomography (OCT), Visual evoked potential (VEP), Humphrey Visual Field (HVF)
- Volunteers
- 61 people
- Sponsor
- Wills Eye
Glaucoma Diagnosis
How Accurately Does the Diopsys Visual Evoked Potential (VEP) Vision Testing System Detect Glaucoma?
Evaluate sensitivity and specificity of NOVA-DN visually evoked potentials (VEP) protocol and new software method (Corda) for glaucoma detection using optical coherence tomography (OCT) images to differentiate between normal…
- Trial name
- NCT02622178
- Testing
- Optical Coherence Tomography, Visual evoked potential
- Where
- United States
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Evoked Potentials, Visual
A Novel Method for Capturing the Visual Evoked Potential During Spine Surgery Under Total Intravenous Anesthesia
Spine surgery in the prone position (which involves lying face down) is associated with various visual changes, ranging from temporary changes in acuity (or sharpness) to permanent blindness.
- Trial name
- VEP (NCT02563028)
- Testing
- SightSaver Visual Stimulator
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Hospital for Special Surgery, New York
Ischemic Optic Neuropathy
Safety and Efficacy of Using SightSaver Visual Evoked Potential (VEP) for VEP Monitoring in Prone Spine Surgery
Post-operative visual loss (POVL) following non-ocular surgical procedures is an infrequent but severe complication. Little is understood about this complication, but most cases seem to result from loss of blood flow to the optic…
- Trial name
- SightSaver (NCT02643615)
- Testing
- VEP under TIVA, VEP under balanced anesth., Propofol
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Ohio State University