Sex differences in ocular biometric measurements: A twin study
ObjectiveGender differences in ocular biometric measurements of opposite-sex and same-sex twin pairs are still unclear. We aimed to investigate the difference between ocular biometric measurements in adolescent twin pairs.Materials and methodsThis retrospective study included a total of 64 eyes of 6...
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmed.2022.936738/full |
| _version_ | 1828098348732645376 |
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| author | Han Zhang Jing Zhou Lili Yang Xiaogung Zhang Wei Shi Hailong Yang Guisen Zhang Jie She Huixia Li |
| author_facet | Han Zhang Jing Zhou Lili Yang Xiaogung Zhang Wei Shi Hailong Yang Guisen Zhang Jie She Huixia Li |
| author_sort | Han Zhang |
| collection | DOAJ |
| description | ObjectiveGender differences in ocular biometric measurements of opposite-sex and same-sex twin pairs are still unclear. We aimed to investigate the difference between ocular biometric measurements in adolescent twin pairs.Materials and methodsThis retrospective study included a total of 64 eyes of 64 adolescents from 32 twins. The ocular biometric measurements and refractive prediction error (RE) were acquired from four groups of dizygotic (DZ) twins: boys from same-sex twin-pairs (SSM, n = 20), boys from opposite-sex twin-pairs (OSM, n = 8), girls from opposite-sex twin-pairs (OSF, n = 8), and girls from same-sex twin-pairs (SSF, n = 29).ResultsThe mean age of the patient was 9.92 ± 2.84 (range: 6–18) years. Overall, boys had higher height, AL, WTW, but lower Ks, and Kf than girls (p < 0.05). Specifically, SSF was found to have the lowest lens thickness (LT), anterior chamber depth (ACD), central corneal thickness (CCT), white to white (WTW), and axial length (AL) levels, while the highest keratometry readings in the flat (Kf) and steep (Ks) levels compared with OSM, OSF, and SSM adolescents (p < 0.05). Compared with the OSF adolescents, ACD levels of the SSF adolescents were significantly lower [(2.99 ± 0.35) and (3.26 ± 0.15) mm, p = 0.033)], but Kf indicator was significantly larger [(43.93 ± 1.64) and (42.91 ± 1.75), p = 0.016)].ConclusionOur study indicates that there was a significant difference in ocular biometric measurements between twin pairs, and sharing the uterus with a DZ twin SSF has smaller ocular indicator measurements. Our findings provide information on the eyeball and refractive development in adolescents. |
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| language | English |
| last_indexed | 2024-04-11T08:00:06Z |
| publishDate | 2022-11-01 |
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| series | Frontiers in Medicine |
| spelling | doaj.art-429e8fe07e164d6881976d5e3a4f41ba2022-12-22T04:35:44ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2022-11-01910.3389/fmed.2022.936738936738Sex differences in ocular biometric measurements: A twin studyHan Zhang0Jing Zhou1Lili Yang2Xiaogung Zhang3Wei Shi4Hailong Yang5Guisen Zhang6Jie She7Huixia Li8Department of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Baotou Chaoju Eye Hospital, Baotou, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Hohhot Chaoju Eye Hospital, Hohhot, ChinaDepartment of Ophthalmology, Inner Mongolia Chaoju Eye Hospital, Hohhot, ChinaObjectiveGender differences in ocular biometric measurements of opposite-sex and same-sex twin pairs are still unclear. We aimed to investigate the difference between ocular biometric measurements in adolescent twin pairs.Materials and methodsThis retrospective study included a total of 64 eyes of 64 adolescents from 32 twins. The ocular biometric measurements and refractive prediction error (RE) were acquired from four groups of dizygotic (DZ) twins: boys from same-sex twin-pairs (SSM, n = 20), boys from opposite-sex twin-pairs (OSM, n = 8), girls from opposite-sex twin-pairs (OSF, n = 8), and girls from same-sex twin-pairs (SSF, n = 29).ResultsThe mean age of the patient was 9.92 ± 2.84 (range: 6–18) years. Overall, boys had higher height, AL, WTW, but lower Ks, and Kf than girls (p < 0.05). Specifically, SSF was found to have the lowest lens thickness (LT), anterior chamber depth (ACD), central corneal thickness (CCT), white to white (WTW), and axial length (AL) levels, while the highest keratometry readings in the flat (Kf) and steep (Ks) levels compared with OSM, OSF, and SSM adolescents (p < 0.05). Compared with the OSF adolescents, ACD levels of the SSF adolescents were significantly lower [(2.99 ± 0.35) and (3.26 ± 0.15) mm, p = 0.033)], but Kf indicator was significantly larger [(43.93 ± 1.64) and (42.91 ± 1.75), p = 0.016)].ConclusionOur study indicates that there was a significant difference in ocular biometric measurements between twin pairs, and sharing the uterus with a DZ twin SSF has smaller ocular indicator measurements. Our findings provide information on the eyeball and refractive development in adolescents.https://www.frontiersin.org/articles/10.3389/fmed.2022.936738/fulladolescentsopposite-sex twin-pairsocular biometric measurementsrefractive prediction errorsame-sex twin-pairs |
| spellingShingle | Han Zhang Jing Zhou Lili Yang Xiaogung Zhang Wei Shi Hailong Yang Guisen Zhang Jie She Huixia Li Sex differences in ocular biometric measurements: A twin study Frontiers in Medicine adolescents opposite-sex twin-pairs ocular biometric measurements refractive prediction error same-sex twin-pairs |
| title | Sex differences in ocular biometric measurements: A twin study |
| title_full | Sex differences in ocular biometric measurements: A twin study |
| title_fullStr | Sex differences in ocular biometric measurements: A twin study |
| title_full_unstemmed | Sex differences in ocular biometric measurements: A twin study |
| title_short | Sex differences in ocular biometric measurements: A twin study |
| title_sort | sex differences in ocular biometric measurements a twin study |
| topic | adolescents opposite-sex twin-pairs ocular biometric measurements refractive prediction error same-sex twin-pairs |
| url | https://www.frontiersin.org/articles/10.3389/fmed.2022.936738/full |
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