Eyes, ears, nose, and throat
Age-related macular degeneration
Retinopathy of prematurity
Eye conditions: Inflammation, infections and trauma: Pathology review
Eye conditions: Refractive errors, lens disorders and glaucoma: Pathology review
Eye conditions: Retinal disorders: Pathology review
Nasal, oral and pharyngeal diseases: Pathology review
Parathyroid disorders and calcium imbalance: Pathology review
Thyroid nodules and thyroid cancer: Pathology review
Vertigo: Pathology review
0 / 5 complete
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.
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.