H57.02

Clinical Causes: Physiological anisocoria, a normal variation found in some individuals Brain injuries or trauma affecting the nerves controlling the pupils Eye injuries or infections that impact the iris or surrounding structures Horner's syndrome, caused by nerve damage affecting eye functions Dialated pupil due to medications or eye drops Third nerve palsy resulting from stroke, aneurysm, or tumor Adie’s tonic pupil, a benign condition affecting pupil response Tumors or masses near the brain or eyes exerting pressure on nerves Inflammatory conditions affecting the eye or brain

Key Symptoms: Noticeable difference in pupil size between the two eyes Possible blurring or difficulty focusing Sensitivity to light (photophobia) Discomfort or pain in the affected eye Partially or fully dilated pupils Vision changes or double vision Associated neurological symptoms such as headaches, weakness, or vision loss (depending on cause)

Diagnosis Path: Diagnosing anisocoria involves a comprehensive eye examination by an optometrist or ophthalmologist. The healthcare provider will check the size, shape, and reactivity of the pupils, as well as evaluate overall eye health. Additional tests may include neurological assessments, imaging studies like MRI or CT scans, and pupil function tests to determine if the inequality is physiological or due to underlying health issues.

Treatment Protocols: Treatment depends on the underlying cause of anisocoria. In cases where it is a benign and normal variation, no intervention may be necessary. If caused by an underlying condition, managing that condition will be the focus. For example, infections may require medication, nerve issues might need specialized therapy, and injuries could necessitate surgical intervention. Regular follow-up with a healthcare provider is essential for ongoing assessment and management.