Orbital anatomical variations between the Southern China and the Kashi populations based on 3D-CT analysisOA
●AIM:To characterize regional variations in orbital morphology between populations from Southern China and Kashi through three-dimensional computed tomography(3D-CT)measurements,providing anatomical references for clinical practice.●METHODS:In this observational cross-sectional study,patients from Zhongshan Ophthalmic Center(Southern China group)and the First People’s Hospital of Kashi(Kashi group)were analyzed using Mimics Research software.And 24 orbital parameters were measured,including orbital volume,retroorbital fat,extraocular muscle volume,and various orbital dimensions.●RESULTS:A total of 160 eyes from 80 participants were included,with each center enrolling 40 participants,comprising 20 males and 20 females.The mean age was 42.75±10.83y(range,25–58)in the Southern China male group,48.35±13.04y(range,21–76)in the Southern China female group,42.40±17.05y(range,21–76)in the Kashi male group,and 43.05±13.52y(range,19–74)in the Kashi female group.No significant differences were observed in orbital volume or medial orbital depth(P>0.05).The Southern China group had greater orbital height(35.98±1.66 vs 34.83±1.88 mm;P=0.005),higher orbital index(95.55±6.59 vs 91.91±4.72;P=0.006),and larger exophthalmos(16.60±2.15 vs 15.49±1.81 mm;P=0.014),while the Kashi group had smaller sphenoid trigone length(11.25±3.14 vs 12.64±3.19 mm;P=0.033)and width[7.43(3.02)mm vs 8.83(3.26)mm;P=0.016].These differences were mainly observed in males.All 3D-CT measurements showed excellent interobserver reliability(ICC=0.95–0.99).●CONCLUSION:This study reveals distinct regional variations in orbital anatomy between the Southern China and Kashi populations.Participants from Southern China exhibit greater orbital height,orbital index,and exophthalmos,whereas those from Kashi show smaller sphenoid trigone dimensions.These findings provide valuable anatomical references for orbital decompression,fracture reconstruction,and radiological diagnosis.
Meng Wang;Yao Yang;Shu-Juan Cao;Jun-Jie Tang;Jin-Miao Li;Yue-Kun Bao;Zhi-Hui Zhang;Yang Gao;Yao-Ming Liu;Mayila·Kuerban;Tuxungu·Abulizi;Shi-Cai Su;Wei-Feng Huang;Ai-Xin Jiang;Rong Lu
State Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaOphthalmologic Center,The Affiliated Kashi Hospital of Sun Yat-sen University,The First People’s Hospital of Kashi,Kashi 844000,Xinjiang Uygur Autonomous Region,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaOphthalmologic Center,The Affiliated Kashi Hospital of Sun Yat-sen University,The First People’s Hospital of Kashi,Kashi 844000,Xinjiang Uygur Autonomous Region,ChinaOphthalmologic Center,The Affiliated Kashi Hospital of Sun Yat-sen University,The First People’s Hospital of Kashi,Kashi 844000,Xinjiang Uygur Autonomous Region,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,ChinaOphthalmologic Center,The Affiliated Kashi Hospital of Sun Yat-sen University,The First People’s Hospital of Kashi,Kashi 844000,Xinjiang Uygur Autonomous Region,ChinaState Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science,Guangdong Provincial Clinical Research Center for Ocular Diseases,Guangzhou 510060,Guangdong Province,China
医药卫生
orbital anatomycomputed tomographygeometric measurementregion variations
《International Journal of Ophthalmology(English edition)》 2026 (7)
P.1374-1382,9
Supported by Research Funds of the State Key Laboratory of Ophthalmology(No.2025QZSPT05)Young Doctoral Startup Project of Guangzhou Basic and Applied Basic Research Project(No.2024A04J4475)Guangdong Basic Research Center of Excellence for Major Blinding Eye Diseases Prevention and Treatment(No.2024-PIZC-039No.2024-YXGG-008).
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