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Retinal dystrophy in the oculo-auricular syndrome due to HMX1 mutation
V Vaclavik1, D F Schorderet, F-X Borruat
1Jules-Gonin Eye Hospital, Lausanne, Switzerland. veronikavaclavik@yahoo.co.uk
Ophthalmic Genetics
|March 23, 2011
Summary
Oculo-auricular syndrome, caused by HMX1 gene mutations, leads to progressive retinal degeneration. This study tracks a patient for 12 years, showing worsening vision and electroretinogram abnormalities.
Area of Science:
- Ophthalmology and genetics research focusing on rare developmental disorders.
- Investigating the clinical and electrophysiological manifestations of HMX1 gene mutations.
Background:
- Oculo-auricular syndrome is a rare, recessive genetic disorder affecting eye and ear development.
- Associated ocular features include microcornea, cataracts, and retinal dystrophy.
Observation:
- A 12-year retrospective study of a patient with oculo-auricular syndrome.
- Serial ophthalmologic examinations and electroretinograms (ERG) were performed.
Findings:
- Initial ERG indicated rod dysfunction, progressing to severe rod-cone dysfunction over time.
- The patient exhibited progressive retinal degeneration consistent with rod-cone dystrophy.
Implications:
- Early diagnosis and monitoring are crucial due to the progressive nature of the retinal dystrophy.
- Visual prognosis for patients with oculo-auricular syndrome is guarded, especially with early-onset degeneration.
