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Familial internal limiting membrane dystrophy. A new sheen retinal dystrophy
T D Polk1, J D Gass, W R Green
1Bascom Palmer Eye Institute, University of Miami School of Medicine, Fla., USA.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|July 1, 1997
Summary
A new form of sheen retinal dystrophy, potentially linked to Müller cells, has been identified. This autosomal dominant condition affects the internal limiting membrane, causing vision loss in later life.
Area of Science:
- Ophthalmology
- Genetics
- Pathology
Background:
- A novel retinal dystrophy was investigated to understand its clinicopathologic characteristics.
- Previous reports did not describe this specific form of retinal degeneration.
Observation:
- A family study identified five individuals with a distinct retinal dystrophy.
- Clinical signs included a glistening inner retinal surface and posterior pole involvement.
Findings:
- Visual impairment resulted from polycystic retinal edema and folds in affected individuals.
- Electroretinography showed a specific decrease in the b-wave amplitude.
- Pathology revealed inner retinal schisis cavities and abnormal retinal capillaries.
Implications:
- The study describes a previously unreported autosomal dominant sheen retinal dystrophy.
- Familial internal limiting membrane dystrophy is proposed as a name for this condition.
- Further research is needed to confirm the suspected Müller cell defect and explore treatments.