Keratoconus 9 C4693660
A genetic form of keratoconus where the cornea progressively deforms and thins. Treatment includes corrective lenses, cross-linking, or transplant in severe cases.
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 (acute corneal edema)
Generalized symptoms
(ophthalmologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Progressive irregular astigmatism causing distorted vision
(ophthalmologic)Frequent need for updated glasses or contact lens prescription
(ophthalmologic)Increased sensitivity to glare (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
Corneal Cross-Linking (CXL)
A minimally invasive procedure that uses riboflavin eye drops and ultraviolet light to strengthen corneal collagen fibers, slowing or halting keratoconus progression. This is considered the gold standard for preventing further corneal thinning and distortion.
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Specialized Contact Lens Fitting
Custom-fitted rigid gas permeable, hybrid, or scleral lenses that vault over the irregular cornea to provide clear vision. Fitting requires expertise and multiple adjustment visits to optimize comfort and visual outcomes.
Additional treatment options
Omega-3 Fatty Acid Supplementation
Oral supplementation with omega-3 fatty acids may support overall ocular surface health and potentially reduce inflammation. Evidence for direct keratoconus benefit is limited but supplementation is generally safe.
complementaryTopography-Guided PRK
Laser refractive surgery that reshapes the cornea based on detailed topography mapping, potentially improving visual quality even when glasses or standard contacts are ineffective. Reserved for stable keratoconus cases.
surgicalPachymetry and Tomography Surveillance
Regular measurement of corneal thickness and three-dimensional mapping to track disease progression and guide treatment decisions. Essential for identifying candidates for cross-linking and monitoring efficacy.
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 9 C4693660?
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.
Ferrari G, Rama P. Keratoconus genetics: update on molecular pathways and clinical implications. Cornea. 2020.
Gomes JAP, Rapuano CJ, Belin MW, et al. Global consensus on keratoconus diagnosis and management. Am J Ophthalmol. 2022.
Vinciguerra R, Torres HF, el Amaouty S, et al. Collagen cross-linking with accelerated custom epithelium removal in progressive keratoconus: randomized controlled trial. Ophthalmology. 2021.
Shorter E, Hossain P, Lako L, et al. Genetic associations in keratoconus: a systematic review and meta-analysis. Ophthalmology. 2023.
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 20, 2026. · Read our editorial policy