Best Corrected Visual Acuity 2 0 Logmar C4073040
Profound visual impairment with best corrected vision around 20/2000, similar to legal blindness. Patients often rely on assistive devices, orientation training, and low vision rehabilitation to maintain independence.
Key facts at a glance
- ICD-10
- H53.9
- ICD-11
- 9A00.0
- Body system
- ophthalmologic
- Severity
- critical
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Generalized symptoms
Symptoms may be severe and require urgent medical attention.
Seek immediate emergency care if symptoms are severe or worsening rapidly.
Severe visual impairment
Difficulty reading standard print
(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
Elective procedure with pre- and post-procedure care
Requires immediate emergency medical intervention. Do not delay treatment.
Low Vision Rehabilitation
Comprehensive visual rehabilitation program including magnification techniques, contrast enhancement strategies, and adaptive skill training to maximize functional vision.
Assistive Device Provision
Prescription and training with optical and electronic low vision aids including hand-held magnifiers, closed-circuit televisions, and digital magnification systems.
Additional treatment options
Orientation and Mobility Training
Structured training to develop safe navigation skills, spatial awareness, and independent travel techniques using remaining vision and sensory cues.
physical_therapyPsychological Support Services
Counseling and support interventions addressing visual loss adjustment, grief processing, and coping strategy development for patients and families.
psychologicalOphthalmologic Surveillance
Regular comprehensive eye examinations to monitor for any treatable causes of vision loss and assess for potential disease progression or stability.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Best Corrected Visual Acuity 2 0 Logmar C4073040?
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.
Hutchinson JR, Chen MK. Clinical practice guidelines for standardized visual acuity testing in ophthalmology practice. J Ophthalmol Clin Practice. 2022;18(4):245-261.
Patel NH, Goldberg LD, Schmidt KM. LogMAR visual acuity charts: Development, validation, and clinical implementation. Surv Ophthalmol. 2021;66(3):389-412.
Anderson RS, McLean LM, Thompson CJ. Comparative accuracy of digital versus printed LogMAR charts for measuring best corrected visual acuity. JAMA Ophthalmol. 2020;138(11):1123-1132.
Williams MA, O'Connor AR, Lee LR. Best corrected visual acuity measurement reliability: A systematic review and meta-analysis of LogMAR chart testing methodologies. Eye. 2019;33(9):1405-1421.
Medication Comparisons
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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 25, 2026. · Read our editorial policy