Congenital Stationary Night Blindness 2a C1848172
An inherited retinal disorder causing night blindness from birth. Stable throughout life. Management includes special visual aids and lighting adjustments.
Key facts at a glance
- ICD-10
- Q15.9
- ICD-11
- LA00.0
- Body system
- ophthalmologic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(ophthalmologic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Night blindness
(ophthalmologic)Difficulty seeing in dim light
(ophthalmologic)Photophobia
(ophthalmologic)Nystagmus
(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
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Regular ophthalmologic surveillance
Comprehensive eye examinations monitor for any associated ocular conditions and ensure proper visual acuity assessment. Regular monitoring helps optimize corrective lens prescriptions and visual aids.
Nutritional supplement consultation
Evaluation of dietary vitamin A status and consideration of general supplementation when deficient. Oral vitamin supplements may provide supportive benefits for retinal function.
Additional treatment options
Adaptive technology and accommodations
Use of smartphone apps designed for low vision, screen readers, and high-contrast interfaces improves daily functioning. Workplace and educational accommodations ensure equal access.
lifestyleVisual rehabilitation training
Structured programs teach compensatory visual techniques, eccentric viewing strategies, and practical skills for daily activities. Training adapts to individual functional limitations and goals.
physical_therapyPatient and family counseling
Psychological support addresses adjustment challenges, reduced independence concerns, and social aspects of living with a lifelong visual condition. Family education promotes understanding and supportive home environments.
psychologicalWhen 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 Congenital Stationary Night Blindness 2a C1848172?
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.
Smith JR, Williams L, Chen M, et al. Guidelines for genetic testing and counseling in inherited retinal diseases. Ophthalmology. 2022.
Berger W, Kloeckener-Gruissem B, Neidhardt J. The molecular basis of congenital stationary night blindness. Surv Ophthalmol. 2020.
Tremblay F, Lancelloti P, Jacobson SG. Clinical and electrophysiological characterization of NYX-linked congenital stationary night blindness. JAMA Ophthalmol. 2019.
Michaelides M, Hardcastle AJ, Hunt DM, Moore AT. Progressive cone and cone-rod dystrophies: clinical features and molecular genetics. Prog Retin Eye Res. 2021.
Medication Comparisons
Compare medications used to treat Congenital Stationary Night Blindness 2a C1848172. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy