Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study

Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study

Mohamad-Reza Sedaghat,1 Farshad Askarizadeh,2 Foroozan Narooie-Noori,3 Tahereh Rakhshandadi,3 Hadi Ostadi-moghadam,2 Sattar Rajabi2 1Cornea Research Center, Khatam-Al-Anbia Hospital, Mashhad University of Medical Sciences, Mashhad, Iran; 2Refractive Errors Research Center, Mashhad University of Med...

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Autores principales: Sedaghat MR, Askarizadeh F, Narooie-Noori F, Rakhshandadi T, Ostadi-moghadam H, Rajabi S
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2018
Materias:
Cornea
Keratoconus
Corneal Tomography
Ocular Biometry
Vogt`s Striae
Ophthalmology
RE1-994
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spelling oai:doaj.org-article:661800053f0d486eb78b3733b15476792021-12-02T06:11:34ZComparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study1177-5483https://doaj.org/article/661800053f0d486eb78b3733b15476792018-08-01T00:00:00Zhttps://www.dovepress.com/comparative-evaluation-of-tomographic-and-biometric-characteristics-in-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Mohamad-Reza Sedaghat,1 Farshad Askarizadeh,2 Foroozan Narooie-Noori,3 Tahereh Rakhshandadi,3 Hadi Ostadi-moghadam,2 Sattar Rajabi2 1Cornea Research Center, Khatam-Al-Anbia Hospital, Mashhad University of Medical Sciences, Mashhad, Iran; 2Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; 3Department of Optometry, School of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran Purpose: The aim of this study was to evaluate and compare tomographic and biometric characteristics measured by the corneal tomography and ocular biometry in bilateral keratoconus (KCN) patients with and without corneal Vogt’s striae. Methods: Ninety-two eyes of 46 subjects with a reliable diagnosis of bilateral KCN with unilateral Vogt’s striae were enrolled in this cross-sectional contralateral eye study. In addition to refraction (calculated by vectorial analysis) and visual acuity, corneal tomographic measurements were obtained by the Pentacam (Scheimpflug-based anterior segment tomography). Also, ocular biometric characteristics were evaluated using the Ocuscan® RxP (ultrasound biometer). The KCN eyes were categorized into two groups, including eyes with Vogt’s striae and eyes without Vogt’s striae. Results: Our results showed significant differences in the sphere, cylinder, spherical equivalent, J0, corrected and uncorrected distance visual acuity, flat, steep and maximum keratometry, anterior chamber depth (ACD), and central corneal thickness (CCT) between the two groups (all P<0.001). The eyes without Vogt’s striae had a shorter ACD measured by the Pentacam and biometer. There were no differences in axial length (AL) and vitreous length (VL) between the two groups (all P>0.05). Also, there was poor agreement between the measurements of the Pentacam and ultrasound biometer for ACD in the study groups. Conclusion: Corneal tomographic and ocular biometric measurements showed significant differences between KCN eyes with and without Vogt’s striae except for AL and VL. These differences should be noticed in clinical evaluations and treatment of KCN patients. Keywords: cornea, keratoconus, corneal tomography, ocular biometry, Vogt’s striaeSedaghat MRAskarizadeh FNarooie-Noori FRakhshandadi TOstadi-moghadam HRajabi SDove Medical PressarticleCorneaKeratoconusCorneal TomographyOcular BiometryVogt`s StriaeOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 12, Pp 1383-1390 (2018)
institution DOAJ
collection DOAJ
language EN
topic Cornea
Keratoconus
Corneal Tomography
Ocular Biometry
Vogt`s Striae
Ophthalmology
RE1-994
spellingShingle Cornea
Keratoconus
Corneal Tomography
Ocular Biometry
Vogt`s Striae
Ophthalmology
RE1-994
Sedaghat MR
Askarizadeh F
Narooie-Noori F
Rakhshandadi T
Ostadi-moghadam H
Rajabi S
Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
description Mohamad-Reza Sedaghat,1 Farshad Askarizadeh,2 Foroozan Narooie-Noori,3 Tahereh Rakhshandadi,3 Hadi Ostadi-moghadam,2 Sattar Rajabi2 1Cornea Research Center, Khatam-Al-Anbia Hospital, Mashhad University of Medical Sciences, Mashhad, Iran; 2Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; 3Department of Optometry, School of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran Purpose: The aim of this study was to evaluate and compare tomographic and biometric characteristics measured by the corneal tomography and ocular biometry in bilateral keratoconus (KCN) patients with and without corneal Vogt’s striae. Methods: Ninety-two eyes of 46 subjects with a reliable diagnosis of bilateral KCN with unilateral Vogt’s striae were enrolled in this cross-sectional contralateral eye study. In addition to refraction (calculated by vectorial analysis) and visual acuity, corneal tomographic measurements were obtained by the Pentacam (Scheimpflug-based anterior segment tomography). Also, ocular biometric characteristics were evaluated using the Ocuscan® RxP (ultrasound biometer). The KCN eyes were categorized into two groups, including eyes with Vogt’s striae and eyes without Vogt’s striae. Results: Our results showed significant differences in the sphere, cylinder, spherical equivalent, J0, corrected and uncorrected distance visual acuity, flat, steep and maximum keratometry, anterior chamber depth (ACD), and central corneal thickness (CCT) between the two groups (all P<0.001). The eyes without Vogt’s striae had a shorter ACD measured by the Pentacam and biometer. There were no differences in axial length (AL) and vitreous length (VL) between the two groups (all P>0.05). Also, there was poor agreement between the measurements of the Pentacam and ultrasound biometer for ACD in the study groups. Conclusion: Corneal tomographic and ocular biometric measurements showed significant differences between KCN eyes with and without Vogt’s striae except for AL and VL. These differences should be noticed in clinical evaluations and treatment of KCN patients. Keywords: cornea, keratoconus, corneal tomography, ocular biometry, Vogt’s striae
format article
author Sedaghat MR
Askarizadeh F
Narooie-Noori F
Rakhshandadi T
Ostadi-moghadam H
Rajabi S
author_facet Sedaghat MR
Askarizadeh F
Narooie-Noori F
Rakhshandadi T
Ostadi-moghadam H
Rajabi S
author_sort Sedaghat MR
title Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
title_short Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
title_full Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
title_fullStr Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
title_full_unstemmed Comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal Vogt’s striae: a contralateral eye study
title_sort comparative evaluation of tomographic and biometric characteristics in bilateral keratoconus patients with unilateral corneal vogt’s striae: a contralateral eye study
publisher Dove Medical Press
publishDate 2018
url https://doaj.org/article/661800053f0d486eb78b3733b1547679
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