Quick Answer: How Common Is Anisocoria?

What causes Anisocoria?

Generally, anisocoria is caused by impaired dilation (a sympathetic response) or impaired constriction (a parasympathetic response) of pupils.

An injury or lesion in either pathway may result in changes in pupil size..

Why do I have one eye bigger than the other?

Normal facial asymmetry can make one eye appear higher or lower than the other. Sometimes it’s not uneven eyes, but uneven eyebrows or the shape of your nose making your eyes appear uneven. Aging is also a common cause of facial asymmetry.

Can Anisocoria be cured?

People with physiological anisocoria do not usually need treatment, as it is typically harmless. Mechanical anisocoria may require surgery to correct the damage a trauma has caused. If the damage is due to an underlying condition, such as uveitis or glaucoma, a doctor will develop an individualized treatment plan.

What is Anisocoria a symptom of?

People with nervous system disorders that cause anisocoria often also have a drooping eyelid, double vision and/or strabismus. Brain disorders associated with anisocoria include strokes, hemorrhage (spontaneous or due to head injury) and, less commonly, certain tumors or infections.

Does Anisocoria come go?

While small differences in pupil size are normal and can even come and go (physiologic anisocoria), constant and significant differences in pupil sizes may be a sign of damage to the nerves that control the pupils or to the brain.

How do I get Anisocoria?

What causes anisocoria?direct trauma to the eye.concussion.bleeding in your skull.inflammation of your optic nerve.brain tumor.aneurysm.meningitis.seizure.

When should I be concerned about dilated pupils?

If you or someone else notices you have dilated pupils or one of your pupils looks larger than the other after head trauma, seek medical attention immediately. The same is true if you experience sudden dizziness, headache, confusion, balance problems or other symptoms of a possible stroke.

Can Anisocoria be normal?

The term anisocoria refers to pupils that are different sizes at the same time. The presence of anisocoria can be normal (physiologic), or it can be a sign of an underlying medical condition.

Is Anisocoria genetic?

Babies born with different sized pupils may not have any underlying disorder. If other family members also have similar pupils, then the pupil size difference could be genetic and is nothing to worry about. Also, for unknown reasons, pupils may temporarily differ in size.

Is Anisocoria serious?

Anisocoria is a condition characterized by an unequal size of the eyes’ pupils. Affecting up to 20% of the population, anisocoria is often entirely harmless, but can be a sign of more serious medical problems.