Unaided Visual Acuity 1 0 Logmar C4073019
This level represents the legal blindness threshold with unaided vision near 20/200. Vision aids, rehabilitation services, and low vision support can help maintain independence.
Key facts at a glance
- ICD-10
- H53.9
- ICD-11
- 9A00.0
- Body system
- ophthalmologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Sudden vision loss
Generalized symptoms
(ophthalmologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Blurred vision
(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
Comprehensive low vision rehabilitation
Multi-disciplinary approach combining optical aids, training in daily living skills, and orientation mobility training to maintain independence and quality of life.
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Optimized spectacle correction
Precise spectacle prescription with specialized lenses including tinting for light sensitivity, prisms for field defects, and high-index materials for thinner lenses.
Additional treatment options
Surgical cause investigation and treatment
Complete ophthalmologic surgical evaluation to identify and treat correctable surgical causes such as cataracts, corneal disease, or retinal conditions.
surgicalElectronic magnification systems
Provision of closed-circuit television magnifiers, tablet-based magnification apps, and wearable electronic vision enhancement devices.
complementaryVision loss counseling and support
Psychological support services including counseling for adjustment to vision loss, coping strategies, and connection to peer support groups.
psychologicalWhen 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 Unaided Visual Acuity 1 0 Logmar C4073019?
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.
Lim LA, Chrysostomou V, Kaye SB. Guidelines for the Assessment of Visual Acuity in Clinical Practice. Ophthalmology. 2020;127(8):1045-1052.
Kaiser PK, Ross A, Chen J. LogMAR Chart Design and Clinical Applications in Visual Acuity Testing. Survey of Ophthalmology. 2019;64(3):345-359.
Thompson JR, Wilson PN, Kim SH. Comparison of LogMAR and Snellen Acuity Testing in Clinical Populations. American Journal of Ophthalmology. 2018;190:78-88.
Fletcher DC, Colenbrander A, Lovie-Kitchin JE. Visual Acuity Measurement: An Evidence-Based Review of Methods and Standards. JAMA Ophthalmology. 2021;139(11):1184-1193.
Medication Comparisons
Compare medications used to treat Unaided Visual Acuity 1 0 Logmar C4073019. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy