Cortical blindness


Cortical blindness


0 / 12 complete

USMLE® Step 1 questions

0 / 1 complete

High Yield Notes

6 pages


Cortical blindness

of complete


USMLE® Step 1 style questions USMLE

of complete

A 67-year-old man presents to the emergency department for evaluation of visual impairment. The patient has not had headache, trauma, or difficulty with speech, swallowing, or walking. Past medical history is significant for coronary artery disease, hypertension and hyperlipidemia. Temperature is 37°C (98.6°F), pulse is 120/min (irregularly irregular), respirations are 17/min and blood pressure is 160/90 mm Hg. On neurological examination, the patient is alert and oriented to person, place, and time. Speech is fluent, and the patient follows all commands. Visual field examination findings are shown below.  The remainder of the neurological examination is within normal limits. Perfusion of which of the following regions of the brain is most likely impaired in this patient?

External Links


Cortical blindness is a type of blindness that is caused by damage to the brain, specifically the occipital (visual) cortex. This type of blindness can be temporary or permanent, depending on the cause of the damage. It is usually caused by stroke, most commonly involving the posterior cerebral artery. Symptoms of cortical blindness include difficulty seeing objects or people, confusion, and lack of coordination.


Copyright © 2023 Elsevier, its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

Cookies are used by this site.

USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). COMLEX-USA® is a registered trademark of The National Board of Osteopathic Medical Examiners, Inc. NCLEX-RN® is a registered trademark of the National Council of State Boards of Nursing, Inc. Test names and other trademarks are the property of the respective trademark holders. None of the trademark holders are endorsed by nor affiliated with Osmosis or this website.