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Flex center method versus center method for endothelial corneal evaluation in eye banking: a comparative analysis.
R Villalba1, A Jiménez, G Fornés
1Regional Blood Transfusion Center and Tissue Establishment (Andalusian Biobank), Avda. San Alberto Magno s/n, 14004, Córdoba, Spain, rafael.villalba.sspa@juntadeandalucia.es.
Cell and Tissue Banking
|March 18, 2014
Summary
The flex-center endothelial analysis method offers comparable corneal endothelium evaluation to existing methods. This newer technique, including more cells, provides satisfactory results for eye banking quality assessments.
Area of Science:
- Ophthalmology
- Corneal Science
- Cell Biology
Background:
- Specular microscopy is crucial for non-invasive corneal endothelial cell analysis.
- Existing analysis programs assess corneal endothelial quality.
- The flex-center method (Konan Inc.) is a novel technique that digitizes outermost cells, potentially increasing analysis scope.
Purpose of the Study:
- To evaluate if the flex-center endothelial analysis method enhances corneal endothelium assessment possibilities before transplantation.
- To compare the efficacy of the flex-center method against existing techniques in eye banking.
Main Methods:
- A comparative study involving 67 corneas was conducted at the Eye Bank of the Tissue Establishment of Córdoba.
- Both the flex-center method and a standard method were used for specular microscopy analysis.
- Key parameters analyzed included endothelial cell count, cell area variation, and hexagonal cell percentage.
Main Results:
- While differences in the number of cells within the analyzed area were observed, they were not statistically significant.
- No significant differences were found in endothelial cell count between the two methods.
- The coefficient of variation for cell area and the percentage of hexagonal cells also showed no significant differences.
Conclusions:
- The flex-center endothelial analysis method demonstrates satisfactory performance in eye banking.
- Both the flex-center method and traditional techniques are suitable for corneal endothelium evaluation.
- The findings support the continued use of both methods for assessing corneal endothelial quality prior to implantation.

