https://www.healthcentral.com/slideshow/the-swinging-flashlight-test-what-your-eye-doctor-is-looking-for
Vision Health

The "Swinging Flashlight Test:" What Your Eye Doctor is Looking For

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What is a Marcus Gunn Pupil?


What is supposed to happen?


What does the "swinging light test" indicate?


What other conditions are associated with the Marcus Gunn Pupil?


Does Marcus Gunn Sign mean I have MS?


What other tests should be conducted to see if I have MS?


Lisa Emrich

Lisa Emrich

@LisaEmrich

Living with multiple sclerosis and rheumatoid Arthritis, Lisa Emrich is an award-winning, passionate patient advocate, health writer, classical musician, and backroad cyclist. Her stories inspire others to live better and stay active. Lisa is author of the blog Brass and Ivory: Life with MS and RA and founder of the Carnival of MS Bloggers. Lisa frequently works with organizations in support of better policies, patient-centered research, and research funding.

Lisa serves on HealthCentral’s Health Advocates Advisory Board, and is a Social Ambassador for the MSHealthCentral Facebook page.