Keratoconus 4 C1836473
A genetic form of keratoconus associated with another identified gene. It shares similar features with other types, including corneal thinning and shape changes affecting sight. Corrective lenses or procedures may be recommended.
Key facts at a glance
- ICD-10
- Q15.9
- ICD-11
- LA00.0
- 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
Generalized symptoms
(ophthalmologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Blurred vision
(ophthalmologic)Progressive visual distortion
(ophthalmologic)Photophobia
(ophthalmologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Rigid Gas Permeable Contact Lenses
Specialized RGP lenses provide a smooth optical surface over the irregular cornea, improving visual acuity by compensating for the cone-shaped distortion. Fitting requires expertise and regular follow-up to ensure proper alignment and oxygen transmission to the cornea.
Corneal Cross-Linking (CXL)
Riboflavin drops combined with ultraviolet light are applied to the cornea to strengthen collagen fibers, halting progression of keratoconus. This procedure can prevent further corneal thinning and bulging, stabilizing vision over time.
Additional treatment options
Eye Rubbing Avoidance
Education and behavioral modification to eliminate eye rubbing, which mechanically exacerbates corneal deformation. Patients learn to recognize triggers such as allergies and implement alternative comfort measures.
lifestyleScleral Contact Lens Fitting
Large-diameter scleral lenses vault over the entire cornea, providing superior comfort and visual correction for irregular corneal surfaces. The fluid reservoir between lens and cornea creates a smooth optical interface.
procedureRegular Corneal Topography
Serial corneal mapping through imaging technology tracks disease progression and treatment response over time. These assessments guide decisions about when to escalate or modify therapeutic interventions.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Keratoconus 4 C1836473?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Gomes JAP, Tan D, Rapuano CJ, et al. Global Consensus on Keratoconus and Ectatic Diseases. Cornea. 2015.
Santodomingo-Rubido J, Carracedo G, Suzaki A, et al. Keratoconus: A Review. Cont Lens Anterior Eye. 2022.
Khan MI, Injarie MA, Ahmed SA. Corneal Cross-Linking for Keratoconus: A Systematic Review and Meta-Analysis. Ophthalmol Ther. 2020.
Shetty R, Nuijts RMMA, Sritharan N, et al. Accelerated Corneal Cross-Linking for Progressive Keratoconus: A Randomized Controlled Trial. J Refract Surg. 2021.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy