myosis


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myosis

(mī-ō′sĭs)
n.
Variant of miosis.

myosis

contraction of the pupil of the EYE.

miosis

Contraction of the pupil or condition in which the pupil is very small (2 mm or less in diameter). It can be brought about by a spasm of the sphincter muscle or by the effect of a miotic drug (e.g. eserine, neostigmine, pilocarpine), or in certain spinal diseases or any stimulation of the parasympathetic supply to the eye. Miosis occurs naturally when doing close work or when stimulated by light. Note: also spelt myosis. See corneal reflex; pupil light reflex; baring of the blind spot; Horner's syndrome.
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References in periodicals archive ?
Caption: Figure 1: Myosis and eyelid ptosis were noted on the right side.
Horner Syndrome Secondary to Thyroid Surgery
During the dilation phase and 80 min after the last bolus, the patient described ptosis, myosis, and enophthalmos, without manifested anhidrosis.
Sindrome de Horner tras analgesia epidural para el parto. Informe de 3 casos
Ipsilateral signs of autonomic response may usually be present, such as lacrimation, rhinorrhoea, nasal congestion, forehead and facial perspiration, myosis, ptosis, eyelid edema, conjunctival injection and temporal arterial inflammation.
Trigeminal autonomic cephalalgia by neurogenic palatine compression: a clinical report and review/ Cefalea autonomica trigeminal por compresion neurogenica palatina: reporte de caso y revision
Upon the arrival at the emergency room, she presented a Glasgow Coma Scale (GCS) of 15, and her symptoms included perspiration, tremors, myosis, respiratory problems, sialorrhea, and vomiting.
Chronic neuropsychological sequelae of cholinesterase inhibitors in the absence of structural brain damage: two cases of acute poisoning
Upward gaze is most frequently affected, but ptosis and myosis may also be present.[10]
Temporal arteritis: a review and case history
On systemic and neurologic examination, slow speaking, weak appearance, mild myosis in the pupils, and mild ataxia while walking in a straight line were observed.
Narcolepsy and cataplexy: a pediatric case report
In the 1976 article by Clement and Scully, (2) an origin from the endometrial stromal cells, adenomyosis, stromal myosis, endometriosis, or multipotential myometrial cells was postulated for these stromal tumors.
Uterine Tumors Resembling Ovarian Sex Cord Tumors
(5) The most common presentation is abdominal distension, pain and neurologic symptoms due to severe nerve root compression and sometimes Horner's syndrome (ptosis, myosis, and ipsilateral anhydrosis).
Fine needle aspiration cytology of retroperitoneal ganglioneuroblastoma--a case report

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