BACKGROUND Conflicting reports exist on the effect of sildenafil on ophthalmic artery blood flow; many visual disturbances due to vascular insult were reported with the use of sildenafil in diabetic patients like nonarteritic ischemic optic neuropathy. OBJECTIVES The present work aimed to investigate whether sildenafil modulates ophthalmic artery vasoreactivity in patients with type 2 diabete...

INTRODUCTION Approximately 54% of civilian pilots rely on ophthalmic lenses to correct defective vision in order to maintain a valid airman medical certificate. This report reviews aviation accidents and incidents where the use or misuse of ophthalmic devices was considered to have been a contributing factor in the mishap. METHODS The NTSB's Aviation Accident/Incident Database and the FAA's I...