Color blindness

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Color 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

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Color blindness

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Color blindness

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Summary

Color blindness is a condition in which a person has difficulty distinguishing certain colors under normal lighting conditions. This decreased ability to see color is usually a developmental defect in some sets of retinal cones, which are responsible for color perception. It's caused by a genetic defect that follows an X-linked inheritance pattern.

Most people with color blindness can see some form of color, but they may not be able to identify all the colors they see. In addition, some people with this condition may confuse different shades of the same color or have difficulty distinguishing between specific colors and shades.

Elsevier

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