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Hypertelorism is an abnormally increased distance between the eyes, often associated with various syndromes. Learn about the embryology, diagnosis and treatment options of this condition, including box osteotomy and facial bipartition.
Epicanthic fold is a skin fold of the upper eyelid that covers the inner corner of the eye. It is common in East Asians, Southeast Asians, and some other populations, and may have evolutionary or medical explanations.
Learn about the different levels of closed-eye hallucinations (CEV), which are visual perceptions that occur when one's eyes are closed or in a darkened room. CEV can range from random noise to complex patterns, objects and environments, and can be influenced by drugs, meditation or relaxation.
The iris is the colored part of the eye that controls the size of the pupil and regulates the amount of light entering the eye. Learn about its structure, microanatomy, development, eye color, and clinical significance in this Wikipedia article.
Blurred vision is an ocular symptom where vision becomes less precise and there is added difficulty to resolve fine details. It can be caused by many factors, such as refractive errors, cataracts, glaucoma, diabetes, retinopathy, and more.
Eidetic memory is the ability to recall an image with high precision after seeing it only once, while photographic memory is the ability to recall text or numbers in detail. Eidetic memory is rare and short-lived, and its existence is questioned by some psychologists and researchers.
Visual release hallucinations, also known as Charles Bonnet syndrome or CBS, are a type of psychophysical visual disturbance in which a person with partial or severe blindness experiences visual hallucinations. The web page explains the signs, symptoms, pathophysiology, diagnosis, and prognosis of CBS, but does not mention the ICD 10 code.
Blinking is a semi-autonomic rapid closing of the eyelid that helps spread tears and remove irritants from the eye. Learn about the anatomy, control, and evolution of blinking, as well as the different types of blinks (spontaneous, reflex, and voluntary) and their functions.