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Genomics Precision Diagnostic > Ophthalmology Precision Panel > Corneal Dystrophies Precision Panel

Corneal Dystrophies Precision Panel

Corneal Dystrophies (CD) are a group of genetic, commonly progressive, eye disorders in which abnormal material often accumulates in the clear outer layer of the eye (the cornea). 
Overview
Indication
Clinical Utility
Genes & Diseases
Methodology
References

Overview

  • Corneal Dystrophies (CD) are a group of genetic, commonly progressive, eye disorders in which abnormal material often accumulates in the clear outer layer of the eye (the cornea). The onset of symptoms varies between patients, from asymptomatic from significant vision impairment cases. This condition can either affect one or both eyes, and the intensity of symptoms in that case is not necessarily equal. The age of onset and specific symptoms vary among the different forms of corneal dystrophy. CD can be grouped by which layers of the cornea is affected: 

     
    Anterior/Superficial Coneal Dystrophies. 

    Stromal Corneal Dystrophies. 

    Posterior Corneal Dystrophies. 

     

  • The Igenomix Corneal Dystrophies Precision Panel can be used to make an accurate and directed diagnosis leading to a better management and prognosis of the disease. It provides a comprehensive analysis of the genes involved in this disease using next-generation sequencing (NGS) to fully understand the spectrum of relevant genes involved.  

Indication

  • The Igenomix Corneal Dystrophies Precision Panel is indicated for those patients with a clinical diagnosis or suspicion presenting with or without the following manifestations: 
    • Dry eyes 
    • Loss of vision. 
    • Sensitivity to light 
    • Pain in the eye 
    • Corneal erosions
    • Blurred vision. 

Clinical Utility

The clinical utility of this panel is: 

  • The genetic and molecular confirmation for an accurate clinical diagnosis of a symptomatic patient.    
  • Early initiation of multidisciplinary treatment including a regular follow up in case of asymptomatic patients. Eye drops and ointments can be used in case of mild symptoms. Surgical treatment (corneal transplant) can be considered if the loss of vision is severe enough. 
  • Risk assessment and genetic counselling of asymptomatic family members according to the mode of inheritance. 
  • Improvement of delineation of genotype-phenotype correlation. 

Genes & Diseases

Methodology

References

See scientific referrals

Møller, H. U., & Sunde, L. (2013). Prevalence of corneal dystrophies in the United States: estimates from claims data. Investigative ophthalmology & visual science, 54(1), 387. https://doi.org/10.1167/iovs.12-11211 

Aggarwal, S., Peck, T., Golen, J., & Karcioglu, Z. A. (2018). Macular corneal dystrophy: A review. Survey of ophthalmology, 63(5), 609–617. https://doi.org/10.1016/j.survophthal.2018.03.004 

Bourges J. L. (2017). Corneal dystrophies. Journal francais d’ophtalmologie, 40(6), e177–e192. https://doi.org/10.1016/j.jfo.2017.05.003 

Soh, Y.Q., Kocaba, V., Weiss, J.S. et al. Corneal dystrophies. Nat Rev Dis Primers 6, 46 (2020). https://doi.org/10.1038/s41572-020-0178-9 

Matthaei, M., Hribek, A., Clahsen, T., Bachmann, B., Cursiefen, C., & Jun, A. S. (2019). Fuchs Endothelial Corneal Dystrophy: Clinical, Genetic, Pathophysiologic, and Therapeutic Aspects. Annual review of vision science, 5, 151–175. https://doi.org/10.1146/annurev-vision-091718-014852 

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