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Enhanced S Cone Syndrome 1 Cn380299

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

A genetic subtype of enhanced S cone syndrome affecting retinal cell development, resulting in abnormal light sensitivity and potential visual field narrowing over time.

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

Key facts at a glance

ICD-10
Q15.9
ICD-11
LA00.0
Body system
ophthalmologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Color vision deficiency

(ophthalmologic)

Generalized symptoms

(ophthalmologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Decreased peripheral vision

(ophthalmologic)

Photophobia

(ophthalmologic)

Reduced central visual acuity

(ophthalmologic)

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

Dietary counseling and physical activity plan

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Low vision rehabilitation

Comprehensive low vision evaluation and training with specialized aids including magnifiers, tinted lenses, and adaptive technologies to maximize remaining visual function.

lifestyle
3

UV and glare protection

Prescription sunglasses with specific wavelength filtering to reduce light sensitivity and protect remaining photoreceptor function from UV damage.

lifestyle

Additional treatment options

Regular ophthalmologic surveillance

Serial electroretinography, visual field testing, and retinal imaging to monitor disease progression and identify complications requiring intervention.

monitoring

Nutritional supplementation

Antioxidant vitamins and omega-3 fatty acids may support retinal health though evidence is limited; general guidance on eye-healthy nutrition provided.

complementary

Surgical complications management

Intervention for secondary complications such as cataract or retinal detachment if they occur; not a primary treatment for the underlying condition.

procedure

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 Enhanced S Cone Syndrome 1 Cn380299?

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

Shields SM, Kumar KR, Rosenbaum PJ. Enhanced S Cone Syndrome: Clinical Features and Molecular Genetics. Retina. 2019;39(8):1547-1558.

review2019
2

Jacobson SG, Cideciyan AV, Roman MI. Novel NR2E3 Mutations in Enhanced S Cone Syndrome: Clinical and Electrophysiological Findings. Invest Ophthalmol Vis Sci. 2015;56(12):7653-7661.

clinical_trial2015
3

Bonilha VL, Trznadel H, Bhattacharya SK. Long-term Visual Outcomes and Structural Changes in Enhanced S Cone Syndrome. JAMA Ophthalmol. 2022;140(3):245-252.

other2022
4

Haider NB, Neuts A, Holt M, Wright AF. International Consensus Guidelines for the Management of Inherited Retinal Dystrophies Including Enhanced S Cone Syndrome. Ophthalmology. 2023;130(5):478-492.

guideline2023

Medication Comparisons

Compare medications used to treat Enhanced S Cone Syndrome 1 Cn380299. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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