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Posters
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Use of combined biomechanical and tomographic data to detect keratoconus
Poster Details
First Author: E.Guilbert FRANCE
Co Author(s): A. Saad A. Grise-Dulac H. Rouger M. Humeniuk D. Gatinel
Abstract Details
Purpose:
To determine a new index using combined corneal biomechanical and tomographic data helping to detect keratoconus
Setting:
Fondation Ophtalmologique Adolphe de Rothschild, Paris, France
Methods:
Data of 213 eyes separated into two groups were retrospectively reviewed : normal (n=109) and keratoconus (n=104). Corneal hysteresis (CH), corneal resistance factor (CRF) and other biomechanical parameters were measured with an ocular biomechanics analyzer. Corneal thickness was measured using a combined placido-scanning slit system.
Results:
Using CH, CRF, H1, thinnest point and central corneal thickness, our index was able to discriminate normal cornea from keratoconus with a sensitivity of 96.2 % and a specificity of 90.8 %. ROC curve showed an area under curve of 0.967.
Conclusions:
Sensitivity and specificity of our new index combining biomechanical and tomographic data were high in detecting keratoconus. FINANCIAL INTEREST: NONE
