Abnormal Best Corrected Visual Acuity Test C4073008
An atypical result on a test measuring the best possible vision with glasses or contacts. May indicate a need for updated vision correction. A full eye exam can help identify causes.
Key facts at a glance
- ICD-10
- H53.9
- ICD-11
- 9A00.0
- Body system
- ophthalmologic
- Severity
- mild
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Double vision
Seeing two images of a single object, which can be horizontal, vertical, or diagonal.
Double vision is a red flag requiring immediate medical evaluation to rule out serious conditions.
Visual distortions
Straight lines appearing wavy, bent, or distorted, which may indicate retinal problems.
This is a red flag symptom requiring urgent ophthalmologic evaluation.
Blurred vision
(visual)Objects appear unclear or out of focus, making it difficult to read, drive, or recognize faces.
Frequency: 85-95% of patients
Difficulty seeing at distance
(visual)Trouble seeing objects far away clearly, such as road signs, television screens, or faces from across the room.
Frequency: 80-90% of patients
Difficulty reading small print
(visual)Trouble reading books, menus, labels, or other small text even with corrective lenses.
Frequency: 75-85% of patients
Frequent headaches
(neurologic)Recurring headaches, particularly after tasks that require visual focus like reading or using a computer.
Frequency: 50-60% of patients
Eye strain and fatigue
(visual)Feeling of tiredness, heaviness, or discomfort in the eyes after visual tasks.
Frequency: 55-65% of patients
Light sensitivity
(visual)Discomfort or pain when exposed to bright light, including sunlight or fluorescent lighting.
Frequency: 40-50% of patients
Night vision difficulty
(visual)Trouble seeing clearly in low-light conditions or at night, often described as nyctalopia.
Frequency: 20-30% of patients
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.
Comprehensive ophthalmologic evaluation
Detailed eye examination by an optometrist or ophthalmologist to determine the underlying cause of reduced visual acuity and establish baseline measurements.
Corrective lens prescription
Provision of glasses or contact lenses to optimize visual acuity when refractive error is identified as the primary cause of abnormal test results.
Additional treatment options
Nutritional supplementation for eye health
Dietary recommendations including foods rich in vitamin A, lutein, and omega-3 fatty acids to support overall ocular health and visual function.
dietaryVision therapy exercises
Structured eye exercises prescribed by a vision therapist to improve ocular coordination and visual processing when indicated.
physical_therapyEnvironmental and lighting modifications
Adjustments to workspace lighting, screen time habits, and environmental factors that may contribute to visual strain and test performance.
lifestyleWhen 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 Abnormal Best Corrected Visual Acuity Test C4073008?
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.
American Academy of Ophthalmology Preferred Practice Pattern Committee. Preferred Practice Pattern: Vision Rehabilitation. American Academy of Ophthalmology; 2022.
World Health Organization. World Report on Vision. Geneva: World Health Organization; 2019.
American Academy of Ophthalmology. Policy Statement: Visual Acuity Testing in Children. Ophthalmology. 2020;127(4):P1-P2.
Kleinstein RN, Jones LA, Hullett S, et al. Refractive Error and Etiology of Low Vision. Optometry and Vision Science. 2019;96(10):725-734.
Friedman NJ, Palanker DV, Schiele G, et al. Visual Outcomes After Wavefront-Guided Laser In Situ Keratomileusis. JAMA Ophthalmology. 2021;139(2):162-170.
Wang SY, Singh K, Lin SC. Association of Visual Acuity with Intraocular Pressure Reduction. British Journal of Ophthalmology. 2018;102(8):1074-1081.
International Council of Ophthalmology. ICO Guidelines for Visual Acuity Measurement. International Council of Ophthalmology; 2021.
Miller D, Schallhorn SC. Visual Acuity Measurement. In: Albert DM, Miller JW, Azar DT, Blodi BA, editors. Albert & Jakobiec's Principles and Practice of Ophthalmology. 4th ed. Springer; 2020:pp.3421-3445.
National Eye Institute. Visual Acuity Testing: Clinical Methods. NEI Health Information. 2020.
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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