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Mechanical anisocoria information


Mechanical anisocoria
Iris Dilator Muscle
SpecialtyOphthalmology

Mechanical anisocoria refers to anisocoria, a common eye condition in which the two pupils differ in size, that is the result of damage to the iris dilator muscle, which may be caused by trauma, angle-closure glaucoma, surgery such as cataract removal, or uveitis (inflammation of the eye). Slit lamp examination is often used as a diagnostic aid: damage to the dilator muscle is indicated by anisocoria when light intensity is lowered.[1]

  1. ^ Mechanical Anisocoria. "Causes of Anisocoria". Medscape. Retrieved 3 November 2015.

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Anisocoria

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difference between pupils is usually less than 1 mm. Horner's syndrome Mechanical anisocoria: Occasionally previous trauma, eye surgery, or inflammation (uveitis...

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Mechanical anisocoria

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Mechanical anisocoria refers to anisocoria, a common eye condition in which the two pupils differ in size, that is the result of damage to the iris dilator...

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Floater

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During this detachment, the shrinking vitreous can stimulate the retina mechanically, causing the patient to see random flashes across the visual field, sometimes...

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Ectropion

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dogs as an inherited, developmental condition. Congenital Aging Scarring Mechanical Allergic Facial nerve palsy Anti-cancer treatments such as erlotinib,...

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Exposure keratopathy

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occasionally lead to corneal perforation. Exposure keratopathy may occur due to mechanical eyelid abnormalities or neuro-paralytic corneal anesthesia. It may occur...

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Ophthalmoparesis

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important finding in orbital cellulitis. The orbit of the eye, including mechanical restrictions of eye movement, as in Graves' disease. The muscle, as in...

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Diplopia

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target the desired object. Problems with these muscles may be due to mechanical problems, disorders of the neuromuscular junction, disorders of the cranial...

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Keratoconjunctivitis

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pecorum. "Superior limbic keratoconjunctivitis" is thought to be caused by mechanical trauma. "Keratoconjunctivitis photoelectrica" (arc eye) means inflammation...

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Esotropia

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both childhood and adulthood, and arise as a result of neurological, mechanical or myogenic problems. These problems may directly affect the extra-ocular...

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Conjunctivochalasis

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Conjunctivochalasis, also known as mechanical dry eye (MDE), is a common eye surface condition characterized by the presence of excess folds of the conjunctiva...

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Allergic conjunctivitis

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conjunctivitis) Contact lens (conjunctivitis is also caused by repeated mechanical irritation of the conjunctiva by contact lens wearers) Most cases of seasonal...

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Duane syndrome

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resulting in retraction of the eye into the socket. They also noticed mechanical factors and considered them secondary to loss of innervation: During corrective...

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Entropion

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stretched and loose ligaments and muscles (senile entropion). Scarring (mechanical entropion) Spasm An eye infection called trachoma is still common in North...

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Esophoria

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insufficiency Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies. Unlike esotropia, fusion is possible and therefore diplopia...

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Blepharitis

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immune deficiency. In treating blepharitis caused by D. folliculorum, mechanical cleaning and proper hygiene are important towards decreasing the parasite's...

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Sixth nerve palsy

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cranial nerves emerge obliquely or transversely, it is more liable to the mechanical effects of backward brain stem displacement by intracranial space occupying...

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Trachoma

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had similar contact with these secretions. Flies can also be a route of mechanical transmission. Untreated, repeated trachoma infections result in entropion...

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Subconjunctival bleeding

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feel dry, rough, or scratchy, but the condition is not usually painful. Mechanical Increased venous pressure (e.g. extreme g-force, straining, vomiting,...

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Glaucoma

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head and the retinal nerve fiber layer) are particularly susceptible to mechanical damage from increases in the intraocular pressure as they pass through...

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List of medical mnemonics

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PAMELA: Ptosis Anhydrosis Miosis Enophthalmos Loss of ciliary-spinal reflex Anisocoria DANISH: Dysdiadochokinesia / dysmetria Ataxia Nystagmus (horizontal) Intention...

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Exophoria

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These can be due to nerve, muscle, or congenital problems, or due to mechanical anomalies. Unlike exotropia, fusion is possible in this condition, causing...

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Traumatic brain injury

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respiratory depression is a classic manifestation of significantly raised ICP. Anisocoria, unequal pupil size, is another sign of serious TBI. Abnormal posturing...

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