Identifying Hyperphoria as a Leading Cause of Migraines and Linking Similarities to Seizures with Binocular Exams and Prisms

David Chang

David LH Chang, O.D.

A compassionate doctor, Dr. Chang provided diligent care for every one of his patients. He graduated from the New England College of Optometry in Boston.  He then completed a fellowship in ocular disease at West Roxbury and Brockton, MA, VA hospitals.  After his residency, he was the primary eye care doctor for 32 nursing homes in New England.  He discovered a new pupillary test to diagnose Alzheimer’s disease. He has worked with numerous sub-specialty ophthalmologists in retina, glaucoma, pediatric neurology and ophthalmology, cornea and refractive surgery.  Dr. Chang was Assistant Director at the San Jose Eye and Laser Medical Center.


The presenter will share his precise predictive hyperphoria values for migraines and its link to seizures.  He will present two migraine cases to highlight what is common across all his migraine patients.  These two cases... [ view full abstract ]


  1. David Chang (David LH Chang, O.D.)

Topic Areas

Personalized therapies (cancer, immunology, infectious diseases, clinical case studies, et , Emerging opportunities in personalized medicine, cutting-edge new strategies and solutions


OS2b-R217 » Emerging opportunities in personalized medicine (15:15 - Tuesday, 26th June, 217)

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