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Marcus Gunn phenomenon is an autosomal dominant condition with incomplete penetrance, in which nursing infants will have rhythmic upward jerking of their upper eyelid. This condition is characterized as a synkinesis : when two or more muscles that are independently innervated have either simultaneous or coordinated movements.
A relative afferent pupillary defect (RAPD), also known as a Marcus Gunn pupil (after Robert Marcus Gunn), is a medical sign observed during the swinging-flashlight test [1] whereupon the patient's pupils excessively dilate when a bright light is swung from the unaffected eye to the affected eye. The affected eye still senses the light and ...
Marcus Gunn pupil: Robert Marcus Gunn: ophthalmology, neurology: severe retinal disease, lesion of optic nerve anterior to chiasm: Gunn's pupillary phenomenon at Who Named It? Relative pupil dilatation when light swings to the affected side Markle's sign: George Bushar Markle IV: surgery: appendicitis (needed) RLQ pain on dropping from standing ...
Mandy Bardisbanian, 33, is one of only 300 people in the world with Marcus Gunn Jaw-winking syndrome - which has caused her to be bullied and self-harm. The rare genetic disorder means nerves and ...
Retrobulbar neuritis, an inflamed optic nerve, but with a normal-appearing nerve head, is associated with pain and the other findings of papillitis. Pseudopapilledema is a normal variant of the optic disk , in which the disk appears elevated, with indistinct margins and a normal vascular pattern.
Neurogenic ptosis, which includes oculomotor nerve palsy, Horner's syndrome, Marcus Gunn jaw winking syndrome and third cranial nerve misdirection. Myogenic ptosis , which includes oculopharyngeal muscular dystrophy , myasthenia gravis , myotonic dystrophy , ocular myopathy, simple congenital ptosis and blepharophimosis syndrome.
Orbital cellulitis commonly presents with painful eye movement, sudden vision loss, chemosis, bulging of the infected eye, and limited eye movement.Along with these symptoms, patients typically have redness and swelling of the eyelid, pain, discharge, inability to open the eye, occasional fever and lethargy.
It causes pain, redness, and swelling over the inner aspect of the lower eyelid and epiphora. When nasolacrimal duct obstruction is secondary to a congenital barrier it is referred to as dacryocystocele. It is most commonly caused by Staphylococcus aureus and Streptococcus pneumoniae. [3]