Corneal epithelium in diabetic patients
K Tsubota1, K Chiba, J Shimazaki
1Department of Ophthalmology, Tokyo Dental College, Chiba, Japan.
Cornea
|March 1, 1991
Summary
Diabetic aphakic patients exhibit significantly larger corneal epithelial cells compared to control groups. Specular microscopy reveals subtle abnormalities in diabetic corneas not visible with standard biomicroscopy.
Area of Science:
- Ophthalmology
- Diabetic Retinopathy Research
- Corneal Science
Background:
- Corneal epithelial cell morphology can be affected by systemic diseases like diabetes.
- Previous studies have not fully characterized these changes using advanced imaging techniques.
Purpose of the Study:
- To investigate and quantify changes in corneal epithelial cell morphology in diabetic patients, with and without a lens (phakic vs. aphakic).
- To compare these changes between diabetic and non-diabetic individuals.
Main Methods:
- Specular microscopy with a wide-field contact lens was used to examine corneal epithelia.
- Morphometric analysis was performed to measure mean corneal epithelial cell areas.
- Patients were categorized into four groups: phakic control, aphakic control, diabetic phakic, and diabetic aphakic.
Main Results:
- Corneal epithelial cells in control groups were hexagonal with smooth surfaces.
- Diabetic phakic patients showed minimal epithelial irregularity.
- Diabetic aphakic patients exhibited larger, irregular corneal epithelial cells, with a statistically significant increase in mean cell area (821 ± 203 μm²) compared to controls (648 ± 152 μm²).
Conclusions:
- Specular microscopy and morphometric analysis can detect corneal epithelial abnormalities in diabetic patients, even when not apparent under biomicroscopy.
- Aphakia may exacerbate diabetic-induced changes in corneal epithelial cell size.
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