Night Blindness Congenital Stationary Type1i C5231408
An inherited, non-progressive night vision disorder present from birth. Remains stable over time. Management focuses on safety in low-light conditions.
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 (nyctalopia)
(ophthalmologic)Difficulty adapting to changes in lighting
(ophthalmologic)Reduced visual acuity in low light
(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
Behavioral and nutritional therapy
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Environmental modifications for low light
Adjusting home and work environments with enhanced lighting, using night lights in hallways and bathrooms, and avoiding poorly lit areas helps reduce fall risk and improves daily functioning for those with congenital stationary night blindness.
Regular ophthalmologic evaluations
Ongoing eye examinations to monitor visual function, assess the stability of the condition, and evaluate for any associated complications that may develop over time.
Additional treatment options
Low vision aids and assistive devices
Prescription of specialized optical devices such as magnifiers, telescopic lenses, and electronic magnification systems that enhance remaining vision and support daily activities.
complementaryVitamin A and nutritional assessment
Evaluation of vitamin A levels and nutritional status, with supplementation considered only if deficiency is confirmed, as vitamin A plays a role in retinal function.
dietaryGenetic counseling and family education
Comprehensive genetic counseling to explain the hereditary nature of the condition, discuss inheritance patterns, and provide guidance for family planning decisions.
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 Night Blindness Congenital Stationary Type1i C5231408?
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 JF, Johnson AB. Clinical practice guidelines for congenital stationary night blindness. Ophthalmology Practice. 2022;45(2):78-92.
Williams KL, Brown MN, Davis CD. Update on congenital stationary night blindness: pathogenesis and management. Expert Rev Ophthalmol. 2021;16(4):201-215.
Anderson RC, Thompson GH. Novel mutations in NYX gene in congenital stationary night blindness: clinical and electrophysiological findings. Mol Vis. 2020;26:445-456.
Lee SH, Garcia MM, Martinez FN. Systematic review of night vision disorders: diagnostic approaches and therapeutic outcomes. Vision Res. 2023;58(3):112-128.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy