honeypot link
skip to main content
skip to main content
Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
Home
/
About the Merck Manuals
/
Authors
/
john j. chen
/
John J. Chen, MD, PhD
Specialities and Expertise
Neuro-ophthalmology
Affiliations
Consultant; Professor of Ophthalmology and Neurology
Mayo Clinic
Manual Chapters and Commentaries
Chapters
Optic Nerve Disorders