Progression of fuchs corneal dystrophy in a family linked to the FCD1 locus

Danielle N. Meadows, Allen O. Eghrari, S. Amer Riazuddin, David G. Emmert, Nicholas Katsanis, John D. Gottsch

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose. Fuchs corneal dystrophy (FCD) is a progressive corneal disease marked by the development of guttae, focal excrescences of Descemet's membrane. Retroillumination photography is a useful technique for illuminating the presence of guttae and has been used to document progression of disease. This study was undertaken to quantitatively assess disease progression in a cohort of individuals with late-onset FCD linked to chromosome 13. Methods. Retroillumination photography was performed on 13 related individuals (26 eyes) with the FCD1 disease haplotype at a 30- to 34-month interval. Individual guttae were counted in each image and the distribution recorded. A polar coordinate system was used to delineate regional differences in development of guttae. Results. An increase of 29.1% was found in the total number of guttae over approximately 30 months (mean increase of 669 guttae/eye, P < 0.001) among 26 eyes. A rapid rate of progression begins at approximately age 50, representing an exponential increase (r2 = 0.60) among individuals mildly affected for decades. Individuals with the disease haplotype but with two affected parents demonstrated an earlier disease onset. A significantly greater proportion of guttae were present in the inferotemporal quadrant of the cornea (P < 0.001), an effect that grew in significance over time. Conclusions. The study demonstrated quantitative progression of FCD with the use of retroillumination photography in an FCD1-linked pedigree. Comparison of severity versus age suggests a rapid increase in the number of guttae at approximately age 50. Individuals with the FCD1 disease haplotype and a second likely genetic lesion exhibit a markedly increased disease severity suggestive of genetic interaction between FCD loci.

Original languageEnglish (US)
Pages (from-to)5662-5666
Number of pages5
JournalInvestigative Ophthalmology and Visual Science
Volume50
Issue number12
DOIs
StatePublished - Dec 2009

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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