The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study
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 thic...
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| Format: | Article |
| Language: | English |
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Adis, Springer Healthcare
2019-05-01
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| Series: | Ophthalmology and Therapy |
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| Online Access: | http://link.springer.com/article/10.1007/s40123-019-0187-5 |
| _version_ | 1828259002749812736 |
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| author | Hamed Momeni-Moghaddam Nasim Maddah James S. Wolffsohn Mohammad Etezad-Razavi Siamak Zarei-Ghanavati Amir Akhavan Rezayat Majid Moshirfar |
| author_facet | Hamed Momeni-Moghaddam Nasim Maddah James S. Wolffsohn Mohammad Etezad-Razavi Siamak Zarei-Ghanavati Amir Akhavan Rezayat Majid Moshirfar |
| author_sort | Hamed Momeni-Moghaddam |
| collection | DOAJ |
| description | 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 Optikgeräte 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 mm3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; 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. |
| first_indexed | 2024-04-13T03:01:43Z |
| format | Article |
| id | doaj.art-788d57884bc741b0a24b057f7f08ea08 |
| institution | Directory Open Access Journal |
| issn | 2193-8245 2193-6528 |
| language | English |
| last_indexed | 2024-04-13T03:01:43Z |
| publishDate | 2019-05-01 |
| publisher | Adis, Springer Healthcare |
| record_format | Article |
| series | Ophthalmology and Therapy |
| spelling | doaj.art-788d57884bc741b0a24b057f7f08ea082022-12-22T03:05:24ZengAdis, Springer HealthcareOphthalmology and Therapy2193-82452193-65282019-05-018338739510.1007/s40123-019-0187-5The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional StudyHamed Momeni-Moghaddam0Nasim Maddah1James S. Wolffsohn2Mohammad Etezad-Razavi3Siamak Zarei-Ghanavati4Amir Akhavan Rezayat5Majid Moshirfar6Health Promotion Research Center, Zahedan University of Medical SciencesDepartment of Optometry, School of Paramedical Sciences, Mashhad University of Medical SciencesOphthalmic Research Group, Aston University, Life and Health SciencesEye Research Center, Mashhad University of Medical SciencesEye Research Center, Mashhad University of Medical SciencesEye Research Center, Mashhad University of Medical SciencesDepartment of Ophthalmology and Visual Sciences, John A. Moran Eye Center, School of Medicine, University of UtahAbstract 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 Optikgeräte 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 mm3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; 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.http://link.springer.com/article/10.1007/s40123-019-0187-5Anterior segmentBiometryCrystalline lensCycloplegiaOcular components |
| spellingShingle | Hamed Momeni-Moghaddam Nasim Maddah James S. Wolffsohn Mohammad Etezad-Razavi Siamak Zarei-Ghanavati Amir Akhavan Rezayat Majid Moshirfar The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study Ophthalmology and Therapy Anterior segment Biometry Crystalline lens Cycloplegia Ocular components |
| title | The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study |
| title_full | The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study |
| title_fullStr | The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study |
| title_full_unstemmed | The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study |
| title_short | The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study |
| title_sort | effect of cycloplegia on the ocular biometric and anterior segment parameters a cross sectional study |
| topic | Anterior segment Biometry Crystalline lens Cycloplegia Ocular components |
| url | http://link.springer.com/article/10.1007/s40123-019-0187-5 |
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