Primitive is related to the word prime, and the root of both words is primus, which is Latin for first. Since the phrase primitive man refers to the world's first people, you might think that the word primate has something to do with the similarity between early humans and monkeys, but it doesn't.
Common symptoms reported by people with Optic Disc Drusen. Reports may be affected by other conditions and/or medication side effects. We ask about general symptoms (anxious mood, depressed mood, insomnia, fatigue, and pain) regardless of condition. Treatments taken by people with Optic Disc Drusen.
Severe optic ner-. ve drusen has been correlated with a reduction of. the nerve fiber layer measured by optic coherence. tomography and with the presence of serious visual. field defects. To demonstrate the relationship bet-. ween extensive optic nerve drusen and visual field. defects. Method: A prospective observational study of the. visual fields of a series of 5 patients with severe. optic nerve drusen diagnosed by ultrasonography. Results: Visual field defects of widely differing. severity, from inferior nasal quadrant to severe. hemivisual field defects, were described in each. patient studied. Conclusions: Visual field defects of diverse seve-. rity are common in patients with deep optic nerve. drusen.