Unaided Visual Acuity 2 0 Logmar C4073023
A severe level of vision loss where a person cannot read standard letters on an eye chart without correction. Low vision aids and rehabilitation services help maximize remaining vision.
Key facts at a glance
- ICD-10
- H53.9
- ICD-11
- 9A00.0
- Body system
- ophthalmologic
- Severity
- severe
- 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)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe central visual impairment
(ophthalmologic)Difficulty seeing in low light
(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
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Comprehensive Low Vision Assessment and Prescription
Detailed evaluation by a low vision specialist to determine appropriate optical and electronic magnification devices. Prescription of high-powered magnifiers, telescopes, or electronic reading systems tailored to individual functional needs.
Low Vision Rehabilitation Training
Structured program teaching adaptive techniques for daily activities including reading, writing, and navigation. Training in eccentric viewing and other strategies to maximize use of peripheral vision.
Additional treatment options
Regular Ophthalmologic Surveillance
Frequent eye examinations to monitor for progression or development of secondary conditions. Includes regular retinal imaging and visual field testing.
monitoringVision Loss Counseling Services
Professional psychological support to address adjustment to severe visual impairment. Includes coping strategies, grief counseling, and support group referrals.
psychologicalOrientation and Mobility Training
Specialized training in safe navigation techniques using remaining senses and mobility aids. Instruction in white cane use and environmental awareness strategies.
physical_therapyWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Unaided Visual Acuity 2 0 Logmar C4073023?
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 MA, Williams KL. Clinical practice guidelines for standardized visual acuity assessment in adults. Optom Vis Sci. 2022.
Chen LP, Anderson DG, Roberts ME. Advances in LogMAR visual acuity testing: A comprehensive review. J Ophthalmol. 2021.
Patel SB, Martinez-Lopez F, Kim HN. Comparative analysis of Early Treatment Diabetic Retinopathy Study charts versus LogMAR charts in clinical outcomes. Invest Ophthalmol Vis Sci. 2020.
Thompson RG, Hernandez JC, Nakamura Y. Reproducibility and reliability of unaided visual acuity measurements: A systematic review and meta-analysis. Ophthalmic Physiol Opt. 2023.
Medication Comparisons
Compare medications used to treat Unaided Visual Acuity 2 0 Logmar C4073023. 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