Cortical blindness

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Cortical blindness

Eyes, ears, nose and throat

Eye disorders

Color blindness

Cortical blindness

Hemianopsia

Homonymous hemianopsia

Bitemporal hemianopsia

Cataract

Glaucoma

Retinal detachment

Age-related macular degeneration

Diabetic retinopathy

Corneal ulcer

Retinoblastoma

Retinopathy of prematurity

Periorbital cellulitis

Uveitis

Keratitis

Orbital cellulitis

Hordeolum (stye)

Conjunctivitis

Neonatal conjunctivitis

Ear disorders

Conductive hearing loss

Eustachian tube dysfunction

Tympanic membrane perforation

Otitis externa

Otitis media

Vestibular disorders

Vertigo

Meniere disease

Labyrinthitis

Acoustic neuroma (schwannoma)

Nasal and nasopharyngeal disorders

Choanal atresia

Allergic rhinitis

Nasal polyps

Nasopharyngeal carcinoma

Oral cavity and oropharyngeal disorders

Sialadenitis

Parotitis

Ludwig angina

Aphthous ulcers

Temporomandibular joint dysfunction

Oral cancer

Warthin tumor

Sleep apnea

Gastroesophageal reflux disease (GERD)

Zenker diverticulum

Retropharyngeal and peritonsillar abscesses

Esophageal cancer

Laryngeal disorders

Laryngomalacia

Laryngitis

Bacterial epiglottitis

Thyroid and parathyroid gland disorders

Thyroglossal duct cyst

Thyroid cancer

Hyperparathyroidism

Hypoparathyroidism

Eyes, ears, nose and throat pathology review

Eye conditions: Refractive errors, lens disorders and glaucoma: Pathology review

Eye conditions: Retinal disorders: Pathology review

Eye conditions: Inflammation, infections and trauma: Pathology review

Vertigo: Pathology review

Nasal, oral and pharyngeal diseases: Pathology review

Thyroid nodules and thyroid cancer: Pathology review

Parathyroid disorders and calcium imbalance: Pathology review

Assessments

Cortical blindness

Flashcards

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USMLE® Step 1 questions

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High Yield Notes

6 pages

Flashcards

Cortical blindness

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Questions

USMLE® Step 1 style questions USMLE

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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?

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Summary

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.

Elsevier

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