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Corneal endothelial dysfunction in Pearson syndrome.

Shivani A Kasbekar¹, Jose A Gonzalez-Martin, Ayad E Shafiq

¹Department of Ophthalmology, Southport and Ormskirk Hospital NHS Trust, Southport, UK.

Ophthalmic Genetics

|September 23, 2011

Summary

This summary is machine-generated.

Pearson syndrome, a severe mitochondrial disorder, can progress to Kearns-Sayre syndrome. This case highlights corneal endothelial failure as a potential ocular manifestation in mitochondrial disorders.

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Area of Science:

Ophthalmology
Genetics
Molecular Biology

Background:

Mitochondrial disorders are systemic diseases with diverse clinical presentations.
Ocular manifestations are common in mitochondrial disorders, impacting vision and eye function.
Pearson syndrome is a severe, early-onset mitochondrial disorder with multi-system involvement.

Observation:

A 12-year-old male with Pearson syndrome exhibited progressive ocular disease.
The patient presented with ptosis, chronic external ophthalmoplegia, and mid-peripheral pigmentary retinopathy.
Persistent corneal endothelial failure leading to corneal edema was observed.

Findings:

The case demonstrates phenotypic drift from Pearson syndrome to Kearns-Sayre syndrome over time.
Corneal endothelial metabolic pump failure is identified as a key factor in the observed corneal edema.
This suggests corneal endothelial dysfunction is part of the ocular spectrum in mitochondrial diseases.

Implications:

This case expands the understanding of the phenotypic variability and progression of mitochondrial disorders.
It highlights the importance of recognizing corneal endothelial failure as a potential ocular sign in mitochondrial diseases.
Early identification and management of ocular complications can improve patient outcomes in mitochondrial disorders.