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Keratoconus C0022578

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

A progressive eye condition where the cornea thins and bulges into a cone shape, distorting vision. It usually develops in teenagers or young adults and can worsen over time. Glasses, special lenses, or surgery may help.

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

Key facts at a glance

ICD-10
H18.601, H18.602, H18.603
ICD-11
9A00.0
Body system
ophthalmologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Corneal hydrops

Blurred vision

(ophthalmologic)

Generalized symptoms

(ophthalmologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Progressive visual distortion

(ophthalmologic)

Photophobia

(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

Corneal Cross-Linking (CXL)

A minimally invasive procedure that uses riboflavin eye drops and ultraviolet light to strengthen corneal collagen fibers, halting disease progression in progressive keratoconus.

surgical
2

Dietary counseling and physical activity plan

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Rigid Gas Permeable Contact Lens Fitting

Specialized contact lenses that create a smooth optical surface over the irregular cornea, providing improved visual acuity compared to spectacles in keratoconus patients.

procedure

Additional treatment options

Spectacle Correction

Custom-toric spectacle prescription to correct myopia and astigmatism in early to moderate keratoconus when contact lenses are not tolerated.

lifestyle

Intracorneal Ring Segments

Small plastic arc segments implanted in the cornea to flatten and regularize the corneal shape, reducing astigmatism and improving contact lens fit.

surgical

Progressive Disease Monitoring

Regular topographic mapping and visual acuity assessment to track disease progression and determine timing of surgical interventions.

monitoring

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 Keratoconus C0022578?

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

Gomes JA, Rapuano CJ, Belin MW, et al. Global Consensus on Keratoconus Diagnosis and Management. Cornea. 2021.

guideline2021
2

Santodomingo-Rubido J, Carracedo G, Suzaki A, et al. Keratoconus: A Review of Update on Pathogenesis, Risk Factors, and Clinical Management. Ophthalmic Physiol Opt. 2022.

review2022
3

Raiskup F, Theuring A, Pillunat LE, Spoerl E. Corneal Collagen Cross-Linking with Riboflavin and UV-A Light in Progressive Keratoconus: 5-Year Results. J Cataract Refract Surg. 2020.

clinical_trial2020
4

Liu Y, Yam JC, Lee GY, et al. Efficacy and Safety of Corneal Cross-Linking for Keratoconus: A Systematic Review and Meta-Analysis. Am J Ophthalmol. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Keratoconus C0022578. 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