Dr. Raymond Roy Articles A Standard Technique for the Prolonged Occlusion Test (PDF) Case History for the Headache Patient (PDF) Headaches and Binocular Stress (PDF) Ocular Migraine – A Case Report (PDF) Ocular Migraine and Latent Heterophoria (PDF) Prism and Binocular Stress (PDF) Symptomatology of Binocular Stress (PDF) Role of Binocular Stress in the Post-Whiplash Syndrome (PDF) The Value of Accurate Vertical Phoria Determinations (PDF) Vision Anomalies from Severe Cervical Strain (PDF) </div