Corneal biomechanical data and biometric parameters measured with scheimpflug‑based devices on normal corneas

Gabor Nemeth, Eszter Szalai, Ziad Hassan, Agnes Lipecz, Zsuzsa Flasko, L. Módis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Aim: To analyze the correlations between ocular biomechanical and biometric data of the eye, measured by Scheimpflug-based devices on healthy subjects. Methods: Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology (CorVis ST) device on healthy eyes and the 10 device-specific parameters were recorded. Pentacam HR-derived parameters (corneal curvature radii on the anterior and posterior surfaces; apical pachymetry; corneal volume; corneal aberration data; depth, volume and angle of the anterior chamber) and axial length (AL) from IOLMaster were correlated with the 10 specific CorVis ST parameters. Results: Measurements were conducted in 43 eyes of 43 volunteers (age 61.24±15.72y). The 10 specific CorVis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface, pachymetric data, root mean square (RMS) data of lower-order aberrations, and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea. Anterior chamber depth showed a significant relationship, but there were no significant correlations between corneal volume, anterior chamber volume, mean chamber angle or AL and the 10 specific CorVis ST parameters. Conclusion: CorVis ST-generated parameters are influenced by corneal curvature radii, some corneal RMS data, but corneal volume, anterior chamber volume, chamber angle and AL have no correlation with the biomechanical parameters. The parameters measured by CorVis ST seem to refer mostly to corneal properties of the eye.

Original languageEnglish
Pages (from-to)217-222
Number of pages6
JournalInternational Journal of Ophthalmology
Volume10
Issue number2
DOIs
Publication statusPublished - Feb 18 2017

Fingerprint

Cornea
Anterior Chamber
Technology
Equipment and Supplies
Volunteers
Healthy Volunteers

Keywords

  • Anterior segment parameters
  • Biomechanics
  • Corneal visualization scheimpflug technology
  • Ocular response analyzer

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Corneal biomechanical data and biometric parameters measured with scheimpflug‑based devices on normal corneas. / Nemeth, Gabor; Szalai, Eszter; Hassan, Ziad; Lipecz, Agnes; Flasko, Zsuzsa; Módis, L.

In: International Journal of Ophthalmology, Vol. 10, No. 2, 18.02.2017, p. 217-222.

Research output: Contribution to journalArticle

Nemeth, Gabor ; Szalai, Eszter ; Hassan, Ziad ; Lipecz, Agnes ; Flasko, Zsuzsa ; Módis, L. / Corneal biomechanical data and biometric parameters measured with scheimpflug‑based devices on normal corneas. In: International Journal of Ophthalmology. 2017 ; Vol. 10, No. 2. pp. 217-222.
@article{5ab8e14e60a8439c8f1b6921c0487ab3,
title = "Corneal biomechanical data and biometric parameters measured with scheimpflug‑based devices on normal corneas",
abstract = "Aim: To analyze the correlations between ocular biomechanical and biometric data of the eye, measured by Scheimpflug-based devices on healthy subjects. Methods: Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology (CorVis ST) device on healthy eyes and the 10 device-specific parameters were recorded. Pentacam HR-derived parameters (corneal curvature radii on the anterior and posterior surfaces; apical pachymetry; corneal volume; corneal aberration data; depth, volume and angle of the anterior chamber) and axial length (AL) from IOLMaster were correlated with the 10 specific CorVis ST parameters. Results: Measurements were conducted in 43 eyes of 43 volunteers (age 61.24±15.72y). The 10 specific CorVis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface, pachymetric data, root mean square (RMS) data of lower-order aberrations, and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea. Anterior chamber depth showed a significant relationship, but there were no significant correlations between corneal volume, anterior chamber volume, mean chamber angle or AL and the 10 specific CorVis ST parameters. Conclusion: CorVis ST-generated parameters are influenced by corneal curvature radii, some corneal RMS data, but corneal volume, anterior chamber volume, chamber angle and AL have no correlation with the biomechanical parameters. The parameters measured by CorVis ST seem to refer mostly to corneal properties of the eye.",
keywords = "Anterior segment parameters, Biomechanics, Corneal visualization scheimpflug technology, Ocular response analyzer",
author = "Gabor Nemeth and Eszter Szalai and Ziad Hassan and Agnes Lipecz and Zsuzsa Flasko and L. M{\'o}dis",
year = "2017",
month = "2",
day = "18",
doi = "10.18240/ijo.2017.02.06",
language = "English",
volume = "10",
pages = "217--222",
journal = "International Journal of Ophthalmology",
issn = "2222-3959",
publisher = "Press of International Journal of Ophthalmology",
number = "2",

}

TY - JOUR

T1 - Corneal biomechanical data and biometric parameters measured with scheimpflug‑based devices on normal corneas

AU - Nemeth, Gabor

AU - Szalai, Eszter

AU - Hassan, Ziad

AU - Lipecz, Agnes

AU - Flasko, Zsuzsa

AU - Módis, L.

PY - 2017/2/18

Y1 - 2017/2/18

N2 - Aim: To analyze the correlations between ocular biomechanical and biometric data of the eye, measured by Scheimpflug-based devices on healthy subjects. Methods: Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology (CorVis ST) device on healthy eyes and the 10 device-specific parameters were recorded. Pentacam HR-derived parameters (corneal curvature radii on the anterior and posterior surfaces; apical pachymetry; corneal volume; corneal aberration data; depth, volume and angle of the anterior chamber) and axial length (AL) from IOLMaster were correlated with the 10 specific CorVis ST parameters. Results: Measurements were conducted in 43 eyes of 43 volunteers (age 61.24±15.72y). The 10 specific CorVis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface, pachymetric data, root mean square (RMS) data of lower-order aberrations, and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea. Anterior chamber depth showed a significant relationship, but there were no significant correlations between corneal volume, anterior chamber volume, mean chamber angle or AL and the 10 specific CorVis ST parameters. Conclusion: CorVis ST-generated parameters are influenced by corneal curvature radii, some corneal RMS data, but corneal volume, anterior chamber volume, chamber angle and AL have no correlation with the biomechanical parameters. The parameters measured by CorVis ST seem to refer mostly to corneal properties of the eye.

AB - Aim: To analyze the correlations between ocular biomechanical and biometric data of the eye, measured by Scheimpflug-based devices on healthy subjects. Methods: Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology (CorVis ST) device on healthy eyes and the 10 device-specific parameters were recorded. Pentacam HR-derived parameters (corneal curvature radii on the anterior and posterior surfaces; apical pachymetry; corneal volume; corneal aberration data; depth, volume and angle of the anterior chamber) and axial length (AL) from IOLMaster were correlated with the 10 specific CorVis ST parameters. Results: Measurements were conducted in 43 eyes of 43 volunteers (age 61.24±15.72y). The 10 specific CorVis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface, pachymetric data, root mean square (RMS) data of lower-order aberrations, and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea. Anterior chamber depth showed a significant relationship, but there were no significant correlations between corneal volume, anterior chamber volume, mean chamber angle or AL and the 10 specific CorVis ST parameters. Conclusion: CorVis ST-generated parameters are influenced by corneal curvature radii, some corneal RMS data, but corneal volume, anterior chamber volume, chamber angle and AL have no correlation with the biomechanical parameters. The parameters measured by CorVis ST seem to refer mostly to corneal properties of the eye.

KW - Anterior segment parameters

KW - Biomechanics

KW - Corneal visualization scheimpflug technology

KW - Ocular response analyzer

UR - http://www.scopus.com/inward/record.url?scp=85014435392&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85014435392&partnerID=8YFLogxK

U2 - 10.18240/ijo.2017.02.06

DO - 10.18240/ijo.2017.02.06

M3 - Article

VL - 10

SP - 217

EP - 222

JO - International Journal of Ophthalmology

JF - International Journal of Ophthalmology

SN - 2222-3959

IS - 2

ER -