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In vivo confocal microscopy of posterior polymorphous dystrophy
Dipika V Patel1, Christina N Grupcheva, Charles N J McGhee
1Department of Ophthalmology, University of Auckland, New Zealand.
Cornea
|June 22, 2005
Summary
In vivo confocal microscopy revealed distinct morphologic features of posterior polymorphous dystrophy (PPD). This imaging technique allows for monitoring disease progression and developing diagnostic criteria for PPD.
Area of Science:
- Ophthalmology
- Corneal Imaging
- Confocal Microscopy
Background:
- Posterior polymorphous dystrophy (PPD) is a rare, inherited corneal disorder.
- Accurate diagnosis and monitoring of PPD progression are crucial for patient management.
Observation:
- This study utilized in vivo confocal microscopy to examine six patients diagnosed with PPD.
- Slit-lamp biomicroscopy and Orbscan II topography were also employed for comprehensive assessment.
Findings:
- In vivo confocal microscopy visualized characteristic endothelial cell polymegathism and bright endothelial nuclei in PPD patients.
- Abnormal curvilinear and vesicular lesions, ranging from 6 to 159 micrometers, were observed.
- Hyperreflectivity at Descemet's membrane and stromal keratocyte alterations were noted around the lesions.
Implications:
- In vivo confocal microscopy offers a non-invasive method for detailed PPD morphologic analysis.
- Longitudinal monitoring of PPD via confocal microscopy can track disease progression.
- This technique may aid in establishing diagnostic and prognostic criteria for posterior polymorphous dystrophy.