Reduced Amplitude Of Dark Adapted Bright Flash Electroretinogram A Wave C4072973
An abnormal electroretinogram finding indicating reduced retinal cell response to bright light in darkness. This test result suggests retinal dysfunction and requires further evaluation to determine the underlying cause.
Key facts at a glance
- ICD-10
- H53.9
- ICD-11
- 9A00.0
- Body system
- ophthalmologic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Abnormal electroretinogram findings
(ophthalmologic)Generalized symptoms
(ophthalmologic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Decreased retinal response
(ophthalmologic)Reduced visual acuity in low light
(ophthalmologic)Peripheral visual field loss
(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
Comprehensive ophthalmologic evaluation
Thorough eye examination including detailed history, visual field testing, and repeated ERG studies to establish baseline function and monitor for changes indicative of progression.
Dietary counseling and physical activity plan
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Diagnostic ophthalmic imaging
Advanced retinal imaging including optical coherence tomography and fundus autofluorescence to identify structural correlates of the electrophysiological abnormalities.
Additional treatment options
Low-vision adaptations
Implementation of environmental modifications including enhanced lighting, contrast enhancement, and low-vision aids to maximize functional vision in daily activities.
lifestyleNutritional assessment
Evaluation of dietary intake to identify deficiencies in nutrients essential for retinal function including omega-3 fatty acids, lutein, zeaxanthin, and vitamin A.
dietaryUnderlying etiology investigation
Systematic workup to identify potentially reversible causes of reduced ERG amplitudes including medication effects, nutritional deficiencies, or systemic diseases.
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 Reduced Amplitude Of Dark Adapted Bright Flash Electroretinogram A Wave C4072973?
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.
Hood DC, Bach M, Brigell M, et al. ISCEV guidelines for analysis of electroretinograms. Doc Ophthalmol. 2020.
American Academy of Ophthalmology. Electroretinography testing in clinical practice. Ophthalmology. 2019.
Parker MO, McBain HA, Fitzke FW. Dark-adapted electroretinogram responses in inherited retinal disorders. Invest Ophthalmol Vis Sci. 2018.
Sieving PA, Frishman LJ. The a-wave of the electroretinogram as an index of photoreceptor function. Ophthalmol Clin North Am. 2016.
Medication Comparisons
Compare medications used to treat Reduced Amplitude Of Dark Adapted Bright Flash Electroretinogram A Wave C4072973. 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