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In the eyes, hypertelorism (widely set eyes) is a defining characteristic, present in 95% of people with Noonan syndrome. This may be accompanied by epicanthal folds (extra fold of skin at the inner corner of the eye), ptosis (drooping of the eyelids), proptosis (bulging eyes), strabismus (inward or outward turning of the eyes), nystagmus ...
Ocular dominance, sometimes called eye preference or eyedness, [1] is the tendency to prefer visual input from one eye to the other. [2] It is somewhat analogous to the laterality of right- or left- handedness ; however, the side of the dominant eye and the dominant hand do not always match. [ 3 ]
The syndrome has a characteristic facial appearance which is similar to that of Kabuki syndrome, including prominent, downward-displaced ears that are underdeveloped, long eyelids, epicanthic folds, a short, broad nose, an open, downturned mouth and a deep groove in the midline of the tongue. [4] Cleft palate occurs in about half of those ...
Parinaud's syndrome is a cluster of abnormalities of eye movement and pupil dysfunction, characterized by: Paralysis of upwards gaze: Downward gaze is usually preserved. This vertical palsy is supranuclear, so doll's head maneuver should elevate the eyes, but eventually all upward gaze mechanisms fail. In the extreme form, conjugate down gaze ...
The fissure may be increased in vertical height in Graves' disease, which is manifested as Dalrymple's sign.It is seen in disorders such as cri-du-chat syndrome. In animal studies using four times the therapeutic concentration of the ophthalmic solution latanoprost, the size of the palpebral fissure can be increased.
The basic werejaguar motif combines a cleft head, slanting almond-shaped eyes with round irises, and a downturned open mouth with a flared upper lip and toothless gums. [5] This motif was first described in print by Marshall Saville in 1929 and expanded upon by artist and archaeologist Miguel Covarrubias in his 1946 and 1957 books.
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The one and a half syndrome is a rare weakness in eye movement affecting both eyes, in which one cannot move laterally at all, and the other can move only in outward direction. More formally, it is characterized by " a conjugate horizontal gaze palsy in one direction and an internuclear ophthalmoplegia in the other ".