Editing Miosis

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{{Infobox medical condition
| name            = Miosis
| image           = [[File:Human_eye_in_bright_light.jpg|250px]]
| caption         = Human eye showing miosis in bright light
| field           = [[Ophthalmology]]
| synonyms        = Myosis
| symptoms        = Constriction of the [[pupil]]
| causes          = [[Opioid]] use, [[parasympathetic nervous system|parasympathetic]] activation, [[Horner's syndrome]], [[pontine hemorrhage]], exposure to [[organophosphate]]s
| diagnosis       = [[Physical examination]], [[neurological examination]]
| differential    = [[Mydriasis]], [[anisocoria]]
| treatment       = Addressing underlying cause, [[atropine]] for symptomatic relief
| frequency       = Common in certain conditions
}}
'''Miosis''' is a term in [[medicine]] that refers to the constriction of the [[pupil]] of the [[eye]]. It is generally caused by various factors such as exposure to bright light, use of certain medications, and certain diseases.
==Causes==
Miosis can be caused by a variety of factors. These include:
* Exposure to bright light: The pupils constrict in response to bright light in order to protect the [[retina]] from damage.
* Use of certain medications: Some medications, such as [[opioids]], can cause miosis.
* Certain diseases: Diseases such as [[Horner's syndrome]] and [[Argyll Robertson pupil]] can cause miosis.
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==Symptoms==
The primary symptom of miosis is the constriction of the pupils. This can result in reduced vision, especially in low light conditions. Other symptoms can include [[headache]], [[nausea]], and [[dizziness]].
==Treatment==
Treatment for miosis depends on the underlying cause. If the miosis is caused by a disease, treating the disease will often resolve the miosis. If the miosis is caused by medication, it may be necessary to adjust the dosage or switch to a different medication.
==See also==
* [[Mydriasis]]
* [[Anisocoria]]
* [[Adie syndrome]]
[[Category:Ophthalmology]]
[[Category:Symptoms]]
[[Category:Eye]]
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