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Vision in Leber congenital amaurosis
A B Fulton1, R M Hansen, D L Mayer
1Department of Ophthalmology, Children's Hospital, Boston, Mass, USA.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|June 1, 1996
Summary
Vision in children with Leber congenital amaurosis (LCA) varies greatly. While vision remained stable for most, some improved and others declined, with no clear predictors found.
Area of Science:
- Ophthalmology
- Genetics
- Pediatrics
Background:
- Leber congenital amaurosis (LCA) is a rare inherited retinal disease causing severe vision impairment from birth.
- Understanding the longitudinal changes in visual function is crucial for managing LCA patients.
Purpose of the Study:
- To investigate age-related changes in vision among infants and children diagnosed with Leber congenital amaurosis.
- To identify potential associations between visual function, its progression, and clinical factors in LCA.
Main Methods:
- Grating acuity and dark-adapted visual thresholds were assessed in 36 LCA patients.
- Longitudinal data from 24 patients were analyzed for changes over time.
- Associations with hyperopia, fundus appearance, and disease status were examined.
Main Results:
- Visual acuity varied significantly, with many patients having no light perception or no measurable acuity.
- Among patients with serial testing, vision was stable or improved in 10, but declined in 4.
- No significant correlations were found between visual function/progression and ocular characteristics or disease status.
Conclusions:
- Visual capabilities in LCA are highly variable and unpredictable.
- Vision tends to be stable in most patients, but some experience improvement or deterioration.
- Ocular characteristics and disease complexity do not reliably predict visual outcomes in LCA, necessitating regular testing.