[2] Without looking for other less obvious "clues" in the retina and choroid, the striking appearance of a bilateral swelling of the optic nerve heads can misdirect investigation toward less ...

Cross-section of nerve fibers from the mouse optic nerve: The dark dense lines show the insulating layer, the myelin. Highlighted in red is a swollen, clogged area of an impaired nerve fiber ...

Examination of the ocular fundus of both eyes after pharmacologic mydriasis revealed bilateral, mildly hyperemic, swollen optic discs with edema of the nerve fiber layer that obscured their ...