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Published on: September 20, 2018
Ophthalmic manifestations of Danon disease
F Ryan Prall1, Arlene Drack, Matthew Taylor
1Department of Ophthalmology, University of Colorado, Aurora, Colorado, USA.
Insights
Danon disease, an X-linked condition, causes characteristic retinopathy in affected females and males. Ophthalmic findings may help identify carriers of this genetic cardiomyopathy.
Area of Science:
- Ophthalmology
- Genetics
- Cardiology
Background:
- Danon disease is an X-linked genetic disorder.
- It is characterized by progressive cardiomyopathy.
- Ophthalmic manifestations are not well-described.
Purpose of the Study:
- To describe the specific ophthalmic findings in patients diagnosed with Danon disease.
- To investigate the extracardiac manifestations of Danon disease, particularly in females.
Main Methods:
- Retrospective case series design.
- Analysis of genetically confirmed Danon disease patients.
- Review of comprehensive eye examinations, including electroretinogram, visual fields, and fluorescein angiography.
Main Results:
- Peripheral pigmentary retinopathy observed in 4 affected females.
- Lens changes, myopia, and abnormal electroretinograms noted in affected females.
- Near-complete retinal pigment epithelium depigmentation seen in affected males.
Conclusions:
- This study presents the first description of a characteristic retinopathy in Danon disease.
- The findings represent the initial report of extracardiac manifestations in affected females.
- Ophthalmic screening may aid in identifying asymptomatic carriers of Danon disease.
Purpose:
To describe the ophthalmic findings in patients with Danon disease, an X-linked condition causing cardiomyopathy in males and females.
Design:
Retrospective case series.
Participants:
Patients with genetically proven Danon disease.
Methods:
Retrospective chart review of complete eye examinations including electroretinogram, visual fields, and fluorescein angiography.
Results:
Five females (4 affected) and 2 affected males were examined. The 4 affected females demonstrated a peripheral pigmentary retinopathy. Lens changes, myopia, abnormal electroretinogram and visual fields were also found. The males demonstrated a near-complete loss of pigment in the retinal pigment epithelium.
Conclusion:
We report the first description of a characteristic retinopathy in patients with Danon disease and the first extracardiac manifestations in affected females. Retinopathy potentially could be used to identify asymptomatic carriers.
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