Knobloch Syndrome 2 C5676897
A hereditary condition affecting eye development, leading to severe myopia and retinal abnormalities. Often includes occipital skull defects. Similar to type 1 but involves different gene mutations. Treatment focuses on protecting vision and preventing blindness.
Key facts at a glance
- ICD-10
- Q15.9
- ICD-11
- LA00.0
- Body system
- ophthalmologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Retinal detachment
Generalized symptoms
(ophthalmologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe myopia
(ophthalmologic)Vitreous opacity
(ophthalmologic)Optic nerve cupping
(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
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Retinal detachment repair
Vitroretinal surgery addresses the characteristic high myopia and retinal degeneration seen in Knobloch syndrome type 2. Early surgical intervention is critical for preserving remaining vision.
Systematic visual function monitoring
Type 2 may have different vitreoretinal degeneration patterns, requiring tailored monitoring protocols. Visual field testing and electroretinography may supplement clinical examination.
Additional treatment options
Myopia control interventions
High myopia associated with Knobloch syndrome type 2 may benefit from myopia control strategies including low-dose atropine drops or specialized contact lenses to slow progression.
medicationEnvironmental safety adaptations
Vision impairment requires home and school/workplace modifications including proper lighting, contrast enhancement, and elimination of fall hazards. Orientation and mobility training may be beneficial.
lifestyleMultidisciplinary genetic syndrome management
Coordination among ophthalmology, genetics, and developmental specialists ensures comprehensive care addressing all manifestations of the syndrome including potential learning implications.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Knobloch Syndrome 2 C5676897?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Knobloch Syndrome 2 C5676897. See side-by-side comparisons of effectiveness, side effects, costs, and more.
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.
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