Repository of Research and Investigative Information

Repository of Research and Investigative Information

Zahedan University of Medical Sciences

The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study

(2019) The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study. Ophthalmology and therapy. ISSN 2193-8245 (Print)

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Official URL: https://www.ncbi.nlm.nih.gov/pubmed/31054123

Abstract

INTRODUCTION: To evaluate the effects of cycloplegia on the biometric components and anterior segment parameters of the eye. METHODS: In this cross-sectional study, changes to axial length (AL), anterior chamber depth (ACD) lens thickness, anterior chamber angle (ACA) and volume, corneal thickness in the pupil center (PC), corneal curvature (CC) and white-to-white (WTW) following cycloplegia induced by tropicamide 1 in 42 eyes of patients aged 23-58 years were assessed. Biometric components and anterior segment parameters were measured using an IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany) and a Pentacam HR (Oculus Optikgerate GmbH, Wetzlar, Germany), respectively. RESULTS: Significant statistical changes in ACD (increased by 0.06 +/- 0.05 mm; p < 0.001), anterior chamber volume (increased by 15.19 +/- 10.32 mm(3); p < 0.001), ACA (decreased by 2.18 +/- 10.20 degrees ; p = 0.029) and lens thickness (decreased by 0.02 +/- 0.03 mm; p < 0.001) were observed post-cycloplegia, while the changes in CC, corneal thickness in the PC, WTW and AL were not statistically different (p > 0.05). Also, a significant inferior displacement of the PC along the vertical axes was seen (p = 0.020). CONCLUSION: Cycloplegia resulted in a deeper ACD and thinner lens thickness. These changes should be considered in determining intraocular lens (IOL) power to prevent refractive surprises in cataract surgery and also in the phakic IOL implantation.

Item Type: Article
Keywords: Anterior segment Biometry Crystalline lens Cycloplegia Ocular components
Journal or Publication Title: Ophthalmology and therapy
Journal Index: Pubmed
Identification Number: https://doi.org/10.1007/s40123-019-0187-5
ISSN: 2193-8245 (Print)
Depositing User: خانم مهدیه رضائی پور
URI: http://eprints.zaums.ac.ir/id/eprint/3323

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