McElnea EM, Pick ZS, Smyth AC, Stevenson LJ, McKelvie PA, Loughnan MS, McNab AA. Ptosis, ophthalmoplegia and corneal endothelial disease - ocular manifestations of mitochondrial disease.
Am J Ophthalmol Case Rep 2021;
22:101073. [PMID:
33869891 DOI:
10.1016/j.ajoc.2021.101073]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 02/03/2021] [Accepted: 03/07/2021] [Indexed: 11/20/2022] Open
Abstract
Purpose
To describe two patients with bilateral ptosis, ophthalmoplegia, cataracts and corneal endothelial disease requiring corneal transplantation.
Observations
Histopathological analysis of muscle biopsy samples from both patients identified features consistent with a mitochondrial cytopathy. A single multigenic mitochondrial deoxyribonucleic acid (DNA) deletion was detected in the first patient. Pathogenic mutations in the POLG gene which codes for mitochondrial DNA polymerase, tasked with replicating the mitochondrial genome were identified in the second patient.
Conclusion
The collection of clinical features present in both cases described can be explained by a diagnosis of mitochondrial disease.
Importance
Corneal endothelial disease, in addition to ptosis, ophthalmoplegia, cataract, pigmentary retinopathy and optic atrophy should be recognised as a feature of mitochondrial disease.
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