Head and Neck

A visual field defect caused by occlusion of a branch of the central retinal artery.

This type of visual field defect results from a lesion of the right optic nerve (or of the eye itself) and produces unilateral monocular blindness.

This type of visual field defect results from a lesion at the optic chiasm (such as a pituitary tumor); visual loss involves the temporal half of each field.

This type of visual field defect results from a lesion of the optic tract, interrupts fibers originating on the same side of both eyes. Visual loss in the eyes is similar and involves half of each field.

This type of visual field defect results from a partial lesion of the optic radiation in the temporal lobe, may involve only a portion of the nerve fibers, producing a “pie in the sky” defect.

This type of visual field defect results from a complete interruption of fibers in the optic radiation and produces a visual defect similar to that produced by a lesion of the optic tract.

A headache without an identified or underlying disease; this includes headaches such as migraine, tension, cluster, and chronic daily headaches.

A headache with an identified underlying disease; this includes headaches that arise from underlying structural, systemic, or infectious causes such as meningitis or subarachnoid hemorrhage and may be life threatening.

What percentage patients with migraine have a symptom prodrome prior to onset?

Vitreous hemorrhage from diabetes or trauma, macular degeneration, retinal detachment, retinal vein occlusion, or central retinal artery occlusion are characterized by what type of vision loss?

Ptosis can result from damage to which cranial nerve?

An inward turning of the eyelid margin (more common in the elderly).

The lower lid margin turns outward, exposing the palpebral conjunctiva.

Protrusion of the eyeball, a common feature of Graves ophthalmopathy.