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KMID : 0360220080490091431
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Journal of the Korean Ophthalmological Society
2008 Volume.49 No. 9 p.1431 ~ p.1436
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Clinical Manifestations of Avellino Corneal Dystrophy Diagnosed by Non-invasive Genetic Test
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Kim Jung-Wan
Kim Hyo-Myung
Song Jong-Suk
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Abstract
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Purpose: To introduce a new genetic method for the diagnosis of Avellino corneal dystrophy (ACD), which is non-invasive and can be easily performed on an outpatient basis, and to evaluate the relationship between the degree of corneal opacity and age or sex.
Methods: A genetic study was performed on 11 patients who had a specific corneal opacity by slit-lamp examination and on four normal patients by using a specific adhesive tape to obtain epidermal keratinocytes. Corneal dystrophy was diagnosed according to the genetic study.
Results: All 11 patients were confirmed as having heterozygous ACD. Heterozygous ACD patients were classified into five stages: trace, mild, moderate, severe, or very severe, based on slit-lamp photography status. Corneal stages had no relationship with sex (p=0.982), but the severity of ACD increased with age (p=0.005).
Conclusions: A non-invasive sticker-type genetic study kit, the “U-gene test” is a good method to diagnose corneal dystrophy genetically. Avellino corneal dystrophy becomes more severe over time but has no relationship with sex. J Korean Ophthalmol Soc 2008;49(9):1431-1436
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KEYWORD
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Avellinocornealdystrophy(ACD), GranulardystrophytypeII, TGFBIgene
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