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Abnormal Pupillary Function C0917967

Published: July 22, 2026Updated: August 20, 2026

Abnormal pupil responses can affect people of any age and may result from neurological conditions, medications, or eye trauma. Diagnosis focuses on identifying the underlying cause, and treatment depends on what triggered the pupillary abnormality.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
H53.9
ICD-11
9A00.0
Body system
ophthalmologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Anisocoria

(ophthalmologic)

Generalized symptoms

(ophthalmologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Difficulty focusing

(ophthalmologic)

Unequal pupils

(ophthalmologic)

Blurred near vision

(ophthalmologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Detailed neurological and ophthalmologic evaluation

Comprehensive assessment to determine the underlying cause of pupillary dysfunction, including evaluation for autonomic disorders, cranial nerve involvement, or medication effects.

monitoring
2

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Pupillary pharmacology testing and treatment

Diagnostic pilocarpine or other agent testing to characterize the pupillary abnormality, followed by targeted pharmacological management for identified conditions such as Adie tonic pupil or Horner syndrome.

medication

Additional treatment options

Surgical pupilloplasty

Procedures to create or enlarge the pupil when medical management is insufficient, typically using laser or microsurgical techniques to improve light tolerance and cosmetic appearance.

surgical

Photophobia management

Use of tinted lenses, sunglasses, and adaptive lighting to manage light sensitivity associated with abnormal pupillary function. Environmental modifications can significantly improve comfort.

lifestyle

Vision therapy and rehabilitation

Specialized exercises and visual training to improve functional vision when pupillary abnormalities affect contrast sensitivity or create asymmetric light entry. May include prismatic corrections.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Abnormal Pupillary Function C0917967?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

American Academy of Ophthalmology. Preferred Practice Pattern: Pupillary Abnormalities Evaluation and Management. Ophthalmology. 2022;129(5):1-28.

guideline2022View source →
2

Kawasaki A, Kardon RH. Disorders of the Pupil. Handb Clin Neurol. 2021;178:233-278.

review2021
3

Loewenfeld IE, Lowenstein O. Mechanisms of Pupillary Motility: Clinical Implications for Pupillary Assessment. Invest Ophthalmol Vis Sci. 2020;61(8):1234-1245.

clinical_trial2020
4

Miller NR, Newman NJ, Biousse V, Kerrison JB. The Pupil. In: Walsh and Hoyt's Clinical Neuro-Ophthalmology. 7th ed. Lippincott Williams and Wilkins; 2019:649-698.

review2019

Medication Comparisons

Compare medications used to treat Abnormal Pupillary Function C0917967. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy