Autosomal Dominant Cataract: Intrafamilial Phenotypic Variability, Interocular Asymmetry, and Variable Progression in Four Chilean Families

To document intrafamilial and interocular phenotypic variability of autosomal dominant cataract (ADC). Prospective observational case series. We performed ophthalmologic examination in four Chilean ADC families. The families exhibited variability with respect to morphology, location with the lens, c...

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Bibliographic Details
Published in:	American journal of ophthalmology 2006-04, Vol.141 (4), p.750-750.e8
Main Authors:	Shafie, Suraiya M., Barria von-Bischhoffshausen, Fernando R., Bateman, J. Bronwyn
Format:	Article
Language:	eng
Subjects:	Asymmetry Biological and medical sciences Cataract - genetics Cataract - pathology Cataracts Chile Disease Progression Documentation Family Genes Genes, Dominant Genetic Variation Humans Lens diseases Lens, Crystalline - pathology Medical sciences Miscellaneous Morphology Mutation Ophthalmology Phenotype
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Summary:	To document intrafamilial and interocular phenotypic variability of autosomal dominant cataract (ADC). Prospective observational case series. We performed ophthalmologic examination in four Chilean ADC families. The families exhibited variability with respect to morphology, location with the lens, color and density of cataracts among affected members. We documented asymmetry between eyes in the morphology, location within the lens, color and density of cataracts, and a variable rate of progression. The cataracts in these families exhibit wide intrafamilial and interocular phenotypic variability, supporting the premise that the mutated genes are expressed differentially in individuals and between eyes; other genes or environmental factors may be the bases for this variability. Marked progression among some family members underscores the variable clinical course of a common mutation within a family. Like retinitis pigmentosa, classification of ADC will be most useful if based on the gene and specific mutation.
ISSN:	0002-9394 1879-1891