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Enhanced S Cone Syndrome C1849394

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

A rare inherited eye disorder causing overgrowth of certain retinal cells, leading to light sensitivity and gradual vision decline. Typically affects both eyes from birth.

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.

Generalized symptoms

(ophthalmologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Nystagmus

(ophthalmologic)

Night blindness

(ophthalmologic)

Peripheral vision loss

(ophthalmologic)

Visual field constriction

(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

Healthy lifestyle changes and stress management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Regular Retinal Monitoring

Frequent ophthalmologic examinations including electroretinography and imaging to track disease progression and plan interventions.

monitoring
3

Environmental Light Modification

Use of tinted lenses or filters to reduce light sensitivity and potentially reduce retinal stress from excessive blue light exposure.

lifestyle

Additional treatment options

Low Vision Rehabilitation Services

Comprehensive vision rehabilitation including assistive technology, magnification devices, and training in adaptive techniques for daily activities.

lifestyle

UV Protection Measures

Use of UV-blocking sunglasses and protective eyewear outdoors to minimize potentially damaging light exposure to retinal cells.

complementary

Psychological Support and Counseling

Mental health support to address vision loss-related emotional impact, depression, anxiety, and adjustment to progressive visual changes.

psychological

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 C1849394?

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

Kaufhold J, Hull S, Michaelides M. Enhanced S Cone Syndrome: Clinical Features and Genetic Basis. Ophthalmic Genet. 2020.

review2020
2

American Academy of Ophthalmology. Preferred Practice Pattern for Inherited Retinal Dystrophies. Ophthalmology. 2022.

guideline2022
3

Yzer S, Barbazetto I, All-Ericsson C, den Hollander AI, van Driel MA, van Born G, de Wuurst AJ, van Schooneveld MJ, Fiore T, Gribomont AC, Auricchio A, Ballabio A, Cremers FP. Expanded clinical spectrum of enhanced S cone syndrome. JAMA Ophthalmol. 2013.

other2013
4

Greenberg J, MacDonald H, Tsilou E. Electrophysiologic Findings in NR2E3-Associated Retinopathies. Doc Ophthalmol. 2021.

review2021

Medication Comparisons

Compare medications used to treat Enhanced S Cone Syndrome C1849394. 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