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Updates on congenital hereditary endothelial dystrophy.

Neet Mehta1, Anshuman Verma2,3, Divya Sree Achanta2,4,5

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Congenital hereditary endothelial dystrophy (CHED) is a rare genetic eye disorder causing progressive corneal clouding. Advanced surgical techniques like DSAEK and DMEK offer improved outcomes, while gene therapies show future promise.

Keywords:
Congenital hereditary endothelial dystrophySolute Carrier Family 4 Member 11 (SLC4A11)corneal endothelial dystrophies in childhood

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Area of Science:

  • Ophthalmology
  • Genetics
  • Corneal Diseases

Background:

  • Congenital hereditary endothelial dystrophy (CHED) is a rare genetic corneal disorder.
  • It leads to progressive cornea clouding and significant visual impairment, particularly in regions with high consanguinity.
  • The Solute Carrier Family 4 Member 11 (SLC4A11) gene is identified as the genetic basis, with ongoing research into its variations.

Purpose of the Study:

  • To review and consolidate current knowledge on CHED.
  • To cover genetic origins, pathophysiology, clinical presentation, and management strategies.
  • To highlight advancements in surgical interventions and potential future therapies.

Main Methods:

  • Literature review of congenital hereditary endothelial dystrophy (CHED).
  • Analysis of genetic variations in the SLC4A11 gene.
  • Evaluation of current and emerging treatment modalities, including surgical interventions and gene-based therapies.

Main Results:

  • Corneal transplantation (PK, DSAEK, DMEK) is the primary treatment for CHED.
  • DSAEK and DMEK demonstrate superior outcomes in pediatric patients compared to PK.
  • Elevated oxidative stress suggests potential therapeutic benefits from anti-inflammatory drugs.

Conclusions:

  • Optimal CHED management requires early diagnosis, appropriate surgical interventions, amblyopia control, and genetic counseling.
  • DSAEK and DMEK offer improved visual recovery and reduced complications in pediatric CHED.
  • Future management necessitates exploring gene-based molecular therapies alongside current treatments.