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Arcus senilis; Other names: arcus adiposus, arcus juvenilis, arcus lipoides corneae, arcus cornealis: Arcus senilis deposits tend to start at 6 and 12 o'clock and progress until becoming completely circumferential. The thin clear section separating the arcus from the limbus is known as the clear interval of Vogt. Specialty: Ophthalmology Symptoms
These individuals may present with a unique set of physical characteristics such as xanthelasmas (yellow deposits of fat underneath the skin often presenting in the nasal portion of the eye), tendon and tuberous xanthomas, arcus juvenilis (the graying of the eye often characterized in older individuals), arterial bruits, claudication, and of ...
arcus senilis: bow of an old person: An opaque circle around the cornea of the eye, often seen in elderly people. When it is found in patients less than 50 years old it is termed arcus juvenilis arduus ad solem: Striving towards the Sun: Motto of Victoria University of Manchester: argentum album: white silver
Cataract, flecked retinopathy, posterior polymorphous dystrophy and corneal arcus juvenilis may be encountered in association with lenticonus anterior that occurs as a part of the Alport syndrome. [2] There exist two distinct types of lenticonus based on the face of the lens affected.
This arch divides into a maxillary process and a mandibular process, giving rise to structures including the bones of the lower two-thirds of the face and the jaw. The maxillary process becomes the maxilla (or upper jaw, although there are large differences among animals [11]), and palate while the mandibular process becomes the mandible or lower jaw.
The Marcus Gunn pupil is a relative afferent pupillary defect indicating a decreased pupillary response to light in the affected eye. [3]In the swinging flashlight test, a light is alternately shone into the left and right eyes.
The genesis of the syndrome is unknown, however it has been suggested that inflammation of the arcus tendon is the possible cause of levator ani syndrome. [5] Proctalgia fugax and levator ani syndrome have not been found to be of psychosomatic origin, although stressful events may trigger attacks. [ 3 ]
Meckel's cartilage is a piece of cartilage from which the mandibles (lower jaws) of vertebrates evolved. Originally it was the lower of two cartilages which supported the first branchial arch in early fish.