Michael C. Hall was born in Raleigh, North Carolina, to Janice (Styons), a guidance counselor, and William Carlyle Hall, who worked for IBM. Michael is a graduate of NYU's Master of Fine Arts program in acting.
Optic nerve drusen commonly cause mild side vision loss that can be detected by machines in the doctors office called visual field analyzers. The side vision loss is usually not appreciated by patients and not a functional concern. Rarely the drusen can cause severe, noticable side vision loss. It would be extremely rare for drusen to cause central vision loss, usually as a result of a choroidal neovascular membrane, which is a growth of new blood vessels near the optic nerve. These blood vessels can leak or bleed, causing loss of vision.
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.