September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Correlation of Anterior and Posterior Corneal Shape in Clinical Keratoconus
Author Affiliations & Notes
  • Jaime Larrea Gonzalez
    Cornea and Refractive Surgery, Instituto de Oftalmología Conde de Valenciana, Mexico City, Mexico
  • Arturo J Ramirez-Miranda
    Cornea and Refractive Surgery, Instituto de Oftalmología Conde de Valenciana, Mexico City, Mexico
  • Alejandro Navas
    Cornea and Refractive Surgery, Instituto de Oftalmología Conde de Valenciana, Mexico City, Mexico
  • Enrique O Graue-Hernandez
    Cornea and Refractive Surgery, Instituto de Oftalmología Conde de Valenciana, Mexico City, Mexico
  • Aida Jimenez-Corona
    Research & Evaluation, Instituto de Oftalmología Conde de Valenciana, Mexico City, Mexico
  • Footnotes
    Commercial Relationships   Jaime Larrea Gonzalez, None; Arturo Ramirez-Miranda, None; Alejandro Navas, None; Enrique Graue-Hernandez, None; Aida Jimenez-Corona, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 2902. doi:
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    • Get Citation

      Jaime Larrea Gonzalez, Arturo J Ramirez-Miranda, Alejandro Navas, Enrique O Graue-Hernandez, Aida Jimenez-Corona; Correlation of Anterior and Posterior Corneal Shape in Clinical Keratoconus. Invest. Ophthalmol. Vis. Sci. 2016;57(12):2902.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To evaluate the corneal volume, pachymetry, and correlation of anterior and posterior corneal shape in subclinical and clinical keratoconus.

Methods : Eyes were placed into 3 groups: keratoconus grade I, grade II, subclinical and a control group. All eyes undewent corneal curvature evaluation by Scheimpflug imaging (Sirius). The posterior-anterior corneal power ratio was also calculated.

Results : 172 eyes (92 patients) were evaluated. Astigmatism and keratometry of both surfaces were significantly higher in the 3 groups (P=<0.05). Posterior astigmatism was significantly higher in the subclinical group . A correlation in astigmatism between the anterior and posterior surface was found in all groups.

Conclusions : The correlation between both surfaces was low, and the correlation between anterior and posterior astigmatism was maintained

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

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