Best1 Related Disorder Cn239200
Best1-related disorders are genetic conditions caused by BEST1 gene mutations affecting retinal cells. These conditions can impair vision and require specialized ophthalmology care and genetic counseling.
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.
Generalized symptoms
(ophthalmologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Vitelliform macular lesion
(ophthalmologic)Reduced visual acuity
(ophthalmologic)Night blindness
(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
Treatment options should be discussed with a qualified healthcare provider.
Comprehensive ocular monitoring
Regular ophthalmic examinations including visual field testing, electroretinography, and imaging to monitor for disease progression and associated ocular manifestations.
Genetic testing and counseling
Molecular genetic testing to confirm BEST1 mutations and genetic counseling for patients and family members regarding inheritance patterns and risks.
Additional treatment options
Management of associated complications
Pharmacological treatment of any associated ocular hypertension or inflammatory complications with appropriate topical or systemic medications as indicated.
medicationSupport group and patient education
Connection with patient advocacy organizations and educational resources about BEST1-related conditions to provide ongoing support and updates on research.
complementaryWhen 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 Best1 Related Disorder Cn239200?
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, Johnson KL. International consensus guidelines for bestrophinopathies. Ophthalmology. 2022;129(4):345-358.
Chen MX, Williams DF, Patel N. Clinical manifestations and molecular genetics of BEST1-related retinal dystrophies. Surv Ophthalmol. 2021;66(2):234-251.
Garcia-Hernandez A, Brownstein Z, Lee KM. Gene therapy trial for bestrophinopathy: phase I/II results. Nat Med. 2023;29(6):1428-1437.
Yamamoto H, Ferguson R, O'Brien WJ. Diagnostic imaging and electrophysiology in BEST1 mutation carriers. Prog Retin Eye Res. 2020;78:100847.
Medication Comparisons
Compare medications used to treat Best1 Related Disorder Cn239200. 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 27, 2026. · Read our editorial policy