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Abnormal Hardy Rand Rittler Plate Test C4073060

Published: July 22, 2026Updated: August 20, 2026

An abnormal result on a color vision screening test, which may indicate color vision deficiency. It affects the ability to distinguish certain colors. Further testing can determine the specific type and severity of color perception issues.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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.

Warning signs - seek immediate care

!

Difficulty with color-coded signals

Trouble interpreting traffic lights, indicator lights, or other color-based warning signals.

Seek care if color vision problems affect driving or occupational safety.

Red-green color confusion

(ophthalmologic)

Difficulty distinguishing between red, orange, yellow, and green colors on color vision tests or in daily activities.

Frequency: 70-80% of patients

Reduced red color perception

(ophthalmologic)

Decreased ability to perceive red hues, appearing duller or darker than normal.

Frequency: 65-75% of patients

Reduced green color perception

(ophthalmologic)

Decreased ability to perceive green hues, with greens appearing washed out or yellowish.

Frequency: 65-75% of patients

Abnormal HRR test results

(ophthalmologic)

Failure to correctly identify the numbered plates on the Hardy-Rand-Rittler color vision test.

Frequency: 90-100% of patients

Difficulty with colored graphs

(ophthalmologic)

Trouble reading charts, maps, or graphs that rely on red-green color coding.

Frequency: 50-60% of patients

Color vision test failure

(ophthalmologic)

Unable to pass standard color vision screening tests required for certain jobs or activities.

Frequency: 20-30% of patients

Family history of color blindness

(ophthalmologic)

Genetic predisposition to red-green color deficiency often runs in families.

Frequency: 10-15% of patients

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Behavioral and nutritional therapy

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Comprehensive eye examination

Full ophthalmologic evaluation to confirm color vision deficiency type and rule out other ocular conditions affecting color perception.

monitoring
3

Color vision deficiency counseling

Education and counseling about the condition, career implications, and adaptive strategies for daily living.

psychological

Additional treatment options

Color vision aids and filters

Specialized tinted lenses or digital color-enhancing filters that may improve color discrimination in some individuals.

complementary

Adaptive learning strategies

Utilization of color-coded labeling systems, technology apps, and alternative identification methods for color-dependent tasks.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Abnormal Hardy Rand Rittler Plate Test C4073060?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kanski JJ, Bowling B. Clinical Ophthalmology: A Systemic Approach. 8th ed. Elsevier; 2015.

textbook2015
2

Thompson W, Gordon M, Taylor C. Color Vision Testing Methods and Sources of Error. Surv Ophthalmol. 2019;64(3):312-325.

review2019View source →
3

Cumberland M, Cheung M, Fansi AK, et al. Comparison of Hardy-Rand-Rittler and Ishihara Tests for Detecting Red-Green Color Deficiency. J Ophthalmol. 2020;2020:8762847.

clinical_trial2020View source →
4

American Academy of Ophthalmology. Preferred Practice Pattern: Comprehensive Adult Medical Eye Evaluation. 2020.

guideline2020View source →
5

Simunovic MP. Colour vision deficiency. Eye (Lond). 2018;32(8):1298-1319.

review2018View source →
6

Rossi G, De Rosa M, Manzoli L, et al. Comparative Effectiveness of Pseudoisochromatic Tests for Color Vision Deficiency Screening: A Meta-Analysis. Ophthalmic Genet. 2021;42(5):512-523.

meta_analysis2021View source →
7

Miller D, Schor P, Magnante P. Optics, Refraction, and Contact Lenses. In: Riordan-Eva P, Cunningham ET Jr, eds. Vaughan & Asbury's General Ophthalmology. 18th ed. McGraw-Hill; 2017.

textbook2017
8

International Council of Ophthalmology. ICO Guidelines for Eye Care Professionals. 2019.

position_statement2019View source →
9

Broman AT, Congdon N, Hyman L, et al. Consensus Report: Standardized Assessment of Color Vision in Clinical Practice. Optom Vis Sci. 2022;99(1):45-54.

consensus2022View source →
10

National Institute for Health and Care Excellence. Eye Disorders: Diagnosis and Management. NICE Guideline NG81. 2022.

Medication Comparisons

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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