Effect of Pharmacological Dilation and Constriction of Pupil on Corneal Topography

Sun, Ran; Beldavs, Robert A.; Gimbel, Howard V.; Ferensowicz, Maria

doi:10.1097/00003226-199605000-00004

Cited by 6 publications

(3 citation statements)

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“…J Fr Ophtalmol (2016), http://dx.doi.org/10.1016/j.jfo.2016.09.003 this lack of effect was also reported for two different corneal topography systems [15,18]. In our study, a slight but significant increase after pupil dilation was also produced in the WTW distance.…”

supporting

confidence: 83%

Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer

Arriola‐Villalobos

Almendral-Gómez

Garzón³

et al. 2016

Journal Français d'Ophtalmologie

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Please cite this article in press as: Arriola-Villalobos P, et al. Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer. J Fr Ophtalmol (2016) Please cite this article in press as: Arriola-Villalobos P, et al. Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer. J Fr Ophtalmol (2016) Procedures. -Eighty-one eyes of 81 patients evaluated for cataract surgery were prospectively examined using the IOLMaster 700 © before and after pupil dilation with tropicamide 1%. The measurements made were: axial length (AL), central corneal thickness (CCT), aqueous chamber depth (ACD), lens thickness (LT), mean keratometry (MK), white-to-white distance (WTW) and pupil diameter (PD). Holladay II and SRK/T formulas were used to calculate IOL power. Agreement between measurement modes (with and without dilation) was assessed through intraclass correlation coefficients (ICC) and Bland-Altman plots. Results. -Mean patient age was 75.17 ± 7.54 years (range: 57-92). Of the variables determined, CCT, ACD, LT and WTW varied significantly according to pupil dilation. Excellent intraobserver correlation was observed between measurements made before and after pupil dilation. Mean IOL power calculation using the Holladay 2 and SRK/T formulas were unmodified by pupil dilation.Conclusions. -The use of pupil dilation produces statistical yet not clinically significant differences in some IOLMaster 700 © measurements. However, it does not affect mean IOL power calculation. © 2016 Elsevier Masson SAS. All rights reserved. MOTS CLÉSCohérence optique swept-source ; Dilatation pupillaire ; Biométrie ; Cataracte ; IOLMaster 700 © Résumé Propos. -Déterminer si la dilatation pupillaire modifie les mesures biométriques et le calcul de la puissance de l'implant intraoculaire obtenus avec un nouveau biomètre optique basé sur la tomographie par cohérence optique swept-source (IOLMaster 700 © ; Carl Zeiss Meditec, Jena, Allemagne) Méthodes. -Nous avons évalué prospectivement 81 yeux de 81 patients prévus pour la chirurgie de la cataracte au moyen du biomètre IOLMaster 700 © , avant et après dilatation pupillaire avec tropicamide 1 %. Les mesures réalisées ont été : longueur axiale (AL), épaisseur cornéenne centrale (CCT), profondeur de la chambre antérieure (épaisseur cornéenne exclue) (ACD), épaisseur cristallinienne (LT), kératométrie moyenne (MK), distance blanc à blanc (WTW) et diamètre pupillaire (PD). Les formules Holladay II et SRK/T ont été employées pour calculer la puissance de l'implant intraoculaire. Nous avons évalué la concordance entre les deux méth-odes de mesure (sous dilatation pupillaire et sans) au moyen des coefficients de corrélation intraclasse (ICC) et des graphiques de Bland-Altman. Résultats. -La moyenne d'âge des patients était de 75,17 ± 7,54 ans (intervalle : 57-92). Parmi les variables mesurées, la CCT,...

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supporting

confidence: 83%

Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer

Arriola‐Villalobos

Almendral-Gómez

Garzón³

et al. 2016

Journal Français d'Ophtalmologie

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“…Our findings in this study showed that the administration of tropicamide drops did not significantly change the strength and curvature of the cornea, which was consistent with the results of research by Sun et al (24) during their study, they did not find significant changes in the strength and curvature of the cornea. They considered the low observed differences due to device error or measurement error.…”

Section: Resultssupporting

confidence: 93%

Comparison study between Pilocarpine and Tropicamide drops on corneal topography and their effect on IL-6 and TNF-α levels in tear

Zhang¹,

Zhao²

2022

Cell Mol Biol (Noisy-le-grand)

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“…In a study in which the effect of pupil dilation on the accuracy of the IOLMaster was examined, the authors attributed changes in average keratometry values to chance (8). In effect, other studies have revealed no change in corneal curvature after pupil dilation (10, 13).…”

Section: Discussionmentioning

confidence: 81%

Effect of Pharmacologic Pupil Dilation on OLCR Optical Biometry Measurements for IOL Predictions

Arriola‐Villalobos

Díaz-Valle

Garzón³

et al. 2013

European Journal of Ophthalmology

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Effect of Pharmacological Dilation and Constriction of Pupil on Corneal Topography

Cited by 6 publications

References 0 publications

Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer

Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer

Comparison study between Pilocarpine and Tropicamide drops on corneal topography and their effect on IL-6 and TNF-α levels in tear

Effect of Pharmacologic Pupil Dilation on OLCR Optical Biometry Measurements for IOL Predictions

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