A Study to Evaluate the Effectiveness of Critical Flicker Fusion in Distinguishing Different Causes of Altered Vision
Tab Title Description
Describes the nature of a clinical study. Types include:
- Observational study — observes people and measures outcomes without affecting results.
- Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
- Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
- Rochester, Minnesota: 18-007977
Sponsor Protocol Number: 18-007977
About this study
The purpose of this study is to evaluate the effectiveness of the critical flicker fusion device in distinguishing different kinds of optic neuropathy and visual perception.
Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.
- Patients 4-90 years or older.
- Patients with visual acuity between 20/20 and 20/200.
- New or established Patients having a diagnosis of autism ages 4-18, (n=20), enrolled through cognitive disorder clinic.
- Patients ages 4-90, (n=110) with optic neuritis, compressive optic neuropathy, ischemic optic neuropathy, and traumatic optic neuropathy, enrolled through ophthalmology.
- Subjects with high standard deviation on the testing, which indicates unreliable results.
- Subjects with a history of photosensitivity or history of photosensitivity resulting in seizures.
- Note that since all tests performed in ophthalmology involve lights and are used on a daily basis in ophthalmology in patients with a history of seizures, only patients with a history of seizures induced by lights will be automatically excluded.
- Patients who are not light sensitive with a seizure disorder will be invited to participate.
Participating Mayo Clinic locations
Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.
|Mayo Clinic Location
Mayo Clinic principal investigator
Cheryl Khanna, M.D.
Open for enrollment
Publications are currently not available
Study Results Summary
Not yet available
Supplemental Study Information
Not yet available