Exploring optical coherence tomography parameters in eyes with myopic tilted disc

Abstract Background To investigate the impact of optic disc torsion (ODT), horizontal disc tilt (HDT) angle, and ovality index (OI) on different retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GCIPL) segments in healthy myopic eyes. Methods ODT and OI were measured from fun...

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Main Authors: Yu Qiao Zhang, Xiu Juan Zhang, Ru Yue Shen, Yuzhou Zhang, Fang Yao Tang, Simon K. H. Szeto, Danny Siu-Chun Ng, Ka Wai Kam, Alvin L. Young, Li Jia Chen, Chi Pui Pang, Clement C. Tham, Jason C. Yam, Poemen P. Chan
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Language:English
Published: BMC 2024-11-01
Series:Eye and Vision
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Online Access:https://doi.org/10.1186/s40662-024-00411-3
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author Yu Qiao Zhang
Xiu Juan Zhang
Ru Yue Shen
Yuzhou Zhang
Fang Yao Tang
Simon K. H. Szeto
Danny Siu-Chun Ng
Ka Wai Kam
Alvin L. Young
Li Jia Chen
Chi Pui Pang
Clement C. Tham
Jason C. Yam
Poemen P. Chan
author_facet Yu Qiao Zhang
Xiu Juan Zhang
Ru Yue Shen
Yuzhou Zhang
Fang Yao Tang
Simon K. H. Szeto
Danny Siu-Chun Ng
Ka Wai Kam
Alvin L. Young
Li Jia Chen
Chi Pui Pang
Clement C. Tham
Jason C. Yam
Poemen P. Chan
author_sort Yu Qiao Zhang
collection DOAJ
description Abstract Background To investigate the impact of optic disc torsion (ODT), horizontal disc tilt (HDT) angle, and ovality index (OI) on different retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GCIPL) segments in healthy myopic eyes. Methods ODT and OI were measured from fundus photographs. HDT angle, peripapillary RNFL, and macular GCIPL were measured by swept-source optical coherence tomography (SS-OCT). The association between optic disc morphology and the RNFL/GCIPL thickness were evaluated, with age and axial length (AL) adjusted. Results Among 530 healthy myopic eyes of 284 participants (mean age: 41.7 years, mean spherical equivalent: − 7.70 D, and mean AL: 26.6 mm), 335 eyes (63.2%) had temporal disc torsion (temporal group) and 195 eyes (36.8%) had nasal disc torsion (nasal group). For the nasal group, a larger OI was associated with thinner superior-to-superonasal GCIPL (β = − 7.465 to − 6.972, both P = 0.024) and temporal RNFL sectors (β = − 49.596 to − 27.748, P ≤ 0.014). For the temporal group, a larger OI was associated with thinner superior-to-nasal (β = − 50.255 to − 22.093, P ≤ 0.006) and thicker temporal RNFL sectors (β = 29.015 to 56.890, P ≤ 0.003). Additionally, a larger HDT angle was associated with thinner superior-to-nasal RNFL sectors (β = − 0.559 to − 0.242, P ≤ 0.036) and thinner superior-to-superotemporal GCIPL sectors (β = − 0.084 to − 0.069, P ≤ 0.037). Conclusions The optic disc tortional direction was associated with the measurement of different RNFL and GCIPL sectors independent of the AL and age. These should be considered when constructing a myopic normative database.
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spelling doaj-art-2e1e5e90736245d99505e0555a47548e2024-11-24T12:11:06ZengBMCEye and Vision2326-02542024-11-0111111310.1186/s40662-024-00411-3Exploring optical coherence tomography parameters in eyes with myopic tilted discYu Qiao Zhang0Xiu Juan Zhang1Ru Yue Shen2Yuzhou Zhang3Fang Yao Tang4Simon K. H. Szeto5Danny Siu-Chun Ng6Ka Wai Kam7Alvin L. Young8Li Jia Chen9Chi Pui Pang10Clement C. Tham11Jason C. Yam12Poemen P. Chan13Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye HospitalHong Kong Eye HospitalAbstract Background To investigate the impact of optic disc torsion (ODT), horizontal disc tilt (HDT) angle, and ovality index (OI) on different retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GCIPL) segments in healthy myopic eyes. Methods ODT and OI were measured from fundus photographs. HDT angle, peripapillary RNFL, and macular GCIPL were measured by swept-source optical coherence tomography (SS-OCT). The association between optic disc morphology and the RNFL/GCIPL thickness were evaluated, with age and axial length (AL) adjusted. Results Among 530 healthy myopic eyes of 284 participants (mean age: 41.7 years, mean spherical equivalent: − 7.70 D, and mean AL: 26.6 mm), 335 eyes (63.2%) had temporal disc torsion (temporal group) and 195 eyes (36.8%) had nasal disc torsion (nasal group). For the nasal group, a larger OI was associated with thinner superior-to-superonasal GCIPL (β = − 7.465 to − 6.972, both P = 0.024) and temporal RNFL sectors (β = − 49.596 to − 27.748, P ≤ 0.014). For the temporal group, a larger OI was associated with thinner superior-to-nasal (β = − 50.255 to − 22.093, P ≤ 0.006) and thicker temporal RNFL sectors (β = 29.015 to 56.890, P ≤ 0.003). Additionally, a larger HDT angle was associated with thinner superior-to-nasal RNFL sectors (β = − 0.559 to − 0.242, P ≤ 0.036) and thinner superior-to-superotemporal GCIPL sectors (β = − 0.084 to − 0.069, P ≤ 0.037). Conclusions The optic disc tortional direction was associated with the measurement of different RNFL and GCIPL sectors independent of the AL and age. These should be considered when constructing a myopic normative database.https://doi.org/10.1186/s40662-024-00411-3Myopic tilted discMyopiaOptical coherence tomography
spellingShingle Yu Qiao Zhang
Xiu Juan Zhang
Ru Yue Shen
Yuzhou Zhang
Fang Yao Tang
Simon K. H. Szeto
Danny Siu-Chun Ng
Ka Wai Kam
Alvin L. Young
Li Jia Chen
Chi Pui Pang
Clement C. Tham
Jason C. Yam
Poemen P. Chan
Exploring optical coherence tomography parameters in eyes with myopic tilted disc
Eye and Vision
Myopic tilted disc
Myopia
Optical coherence tomography
title Exploring optical coherence tomography parameters in eyes with myopic tilted disc
title_full Exploring optical coherence tomography parameters in eyes with myopic tilted disc
title_fullStr Exploring optical coherence tomography parameters in eyes with myopic tilted disc
title_full_unstemmed Exploring optical coherence tomography parameters in eyes with myopic tilted disc
title_short Exploring optical coherence tomography parameters in eyes with myopic tilted disc
title_sort exploring optical coherence tomography parameters in eyes with myopic tilted disc
topic Myopic tilted disc
Myopia
Optical coherence tomography
url https://doi.org/10.1186/s40662-024-00411-3
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