Evaluation of Intraocular Pressure and Other Biomechanical Parameters to Distinguish between Subclinical Keratoconus and Healthy Corneas
(1) Purpose: To assess the main corneal response differences between normal and subclinical keratoconus (SCKC) with a Corvis(R) ST device. (2) Material and Methods: We selected 183 eyes of normal patients, of a mean age of 33 +/- 9 years and 16 eyes of patients with SCKC of a similar mean age. We me...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO) |
| Repositorio: | r-FISABIO. Repositorio Institucional de Producción Científica |
| OAI Identifier: | oai:fisabio.fundanetsuite.com:p9399 |
| Acceso en línea: | https://fisabio.portalinvestigacion.com/publicaciones/9399 |
| Access Level: | acceso abierto |
| Palabra clave: | intraocular pressure ocular inflammation cornea biomechanics Corvis(®) ST subclinical keratoconus |
| Sumario: | (1) Purpose: To assess the main corneal response differences between normal and subclinical keratoconus (SCKC) with a Corvis(R) ST device. (2) Material and Methods: We selected 183 eyes of normal patients, of a mean age of 33 +/- 9 years and 16 eyes of patients with SCKC of a similar mean age. We measured best corrected visual acuity (BCVA) and corneal topography with a Pentacam HD device to select the SCKC group. Biomechanical measurements were performed using the Corvis(R) ST device. We carried out a non-parametric analysis of the data with SPSS software (Wilcoxon signed rank-test). (3) Results: We found statistically significant differences between the control and SCKC groups in some corneal biomechanical parameters: first and second applanation time (p = 0.05 and p = 0.02), maximum deformation amplitude (p = 0.016), highest concavity radius (p = 0.007), and second applanation length and corneal velocity ((p = 0.039 and p = 0.016). (4) Conclusions: Our results show that the use of normalised biomechanical parameters provided by noncontact tonometry, combined with a discriminant function theory, is a useful tool for detecting subclinical keratoconus. |
|---|