Mechanical anisocoria

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Mechanical anisocoria
Iris dilator muscle
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Unequal pupil sizes
Complications	Potential vision issues
Onset	Can occur at any age
Duration	Varies depending on cause
Types	N/A
Causes	Trauma, surgery, inflammation, glaucoma, tumor
Risks	Eye injury, eye surgery
Diagnosis	Clinical examination, pupil light reflex test
Differential diagnosis	Physiological anisocoria, Horner's syndrome, Adie syndrome
Prevention	N/A
Treatment	Depends on underlying cause
Medication	N/A
Prognosis	Varies; often benign
Frequency	Common
Deaths	N/A

Mechanical Anisocoria is a medical condition characterized by unequal pupil sizes. It is a subtype of Anisocoria, which is a condition where the two pupils of an individual's eyes are of unequal sizes. Mechanical Anisocoria is specifically caused by physical damage or disruption to the muscles of the iris or the nerves that control these muscles.

Causes

Mechanical Anisocoria can be caused by a variety of factors, including:

• Trauma to the eye, such as a blunt force injury or penetrating injury
• Surgical complications, particularly from cataract surgery or glaucoma surgery
• Tumors or neoplasms that physically disrupt the iris or its controlling nerves
• Congenital disorders, such as Axenfeld-Rieger syndrome, that affect the development of the iris

Symptoms

The primary symptom of Mechanical Anisocoria is a visible difference in pupil size between the two eyes. This difference may be more pronounced in different lighting conditions. Other symptoms can include:

• Blurred vision
• Double vision
• Headache
• Eye pain

Diagnosis

Diagnosis of Mechanical Anisocoria typically involves a thorough eye examination, including:

• Slit lamp examination
• Pupil dilation
• Visual acuity test
• Ophthalmoscopy

Treatment

Treatment for Mechanical Anisocoria depends on the underlying cause. In some cases, no treatment may be necessary. In other cases, treatment options can include:

• Medication
• Surgery
• Eye patching
• Physical therapy

See also

• Anisocoria
• Horner's syndrome
• Adie syndrome
• Third nerve palsy