A simulation study with finite element model on the unequal loss of peripheral vision caused by acceleration_Journal of Biomedical Engineering

Authors：

GENG Xiaoqi ¹ , LIU Xiaoyu ¹ , LIU Songyang ² , XU Yan ² , ZHAO Xianliang ² , WANG Jie ² ,  FAN Yubo ¹

1. Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, P.R.China;
2. Institute of Aviation Medicine, Beijing 100142, P.R.China;

Corresponding author：

FAN Yubo, Email: yubofan@buaa.edu.cn

Keywords：

acceleration; finite element; loss of vision; eye model

DOI：

10.7507/1001-5515.201606046

Video：

Export PDF Favorites Scan Get Citation

Abstract Full text Figures/Tables Video References Cited by

An unequal loss of peripheral vision may happen with high sustaining multi-axis acceleration, leading to a great potential flight safety hazard. In the present research, finite element method was used to study the mechanism of unequal loss of peripheral vision. Firstly, a 3D geometric model of skull was developed based on the adult computer tomography (CT) images. The model of double eyes was created by mirroring with the previous right eye model. Then, the double-eye model was matched to the skull model, and fat was filled between eyeballs and skull. Acceleration loads of head-to-foot (Gz), right-to-left (Gy), chest-to-back (Gx) and multi-axis directions were applied to the current model to simulate dynamic response of retina by explicit dynamics solution. The results showed that the relative strain of double eyes was 25.7% under multi-axis acceleration load. Moreover, the strain distributions showed a significant difference among acceleration loaded in different directions. It indicated that a finite element model of double eyes was an effective means to study the mechanism of an unequal loss of peripheral vision at sustaining high multi-axis acceleration.

Citation： GENG Xiaoqi, LIU Xiaoyu, LIU Songyang, XU Yan, ZHAO Xianliang, WANG Jie, FAN Yubo. A simulation study with finite element model on the unequal loss of peripheral vision caused by acceleration. Journal of Biomedical Engineering, 2017, 34(2): 188-192. doi: 10.7507/1001-5515.201606046 Copy

1.	樊瑜波, 柳松杨. 航空生物力学. 医用生物力学, 2010, 25(4): 235-238.
2.	徐艳, 雍伟, 卫晓阳, 等. ±Gx 或±Gy 与+Gz 复合作用对人体抗荷耐力的影响. 航天医学与医学工程, 2015, 28(5): 336-340.
3.	Paul M A. Asymmetric visual deficit at high sustained Gz. Aviat Space Environ Med, 1991, 62(6): 573-574.
4.	Popper S E, Tripp L D. Unequal narrowing of the visual field in a +Gz environment. Aviat Space Environ Med, 1991, 62(10): 986-988.
5.	赵蓉, 王恩普, 田青, 等. 1960-2005 年军事飞行人员屈光不正构成变化的分析. 中华航空航天医学杂志, 2006, 17(2): 143-145.
6.	王雷, 梁艳闯. 中国民航飞行员眼病流行病学调查分析. 中国药物与临床, 2010, 10(9): 1024-1025.
7.	郑丽娟, 闫一力, 王丽, 等. 空勤人员屈光不正情况及相关因素调查分析. 国际眼科杂志, 2014, 14(10): 1914-1916.
8.	Liu Xiaoyu, Wang Lizhen, Wang Chao, et al. Mechanism of traumatic retinal detachment in blunt impact: a finite element study. J Biomech, 2013, 46(7): 1321-1327.
9.	Liu Xiaoyu, Wang Lizhen, Wang Chao, et al. Prediction of globe rupture caused by primary blast: a finite element analysis. Comput Methods Biomech Biomed Engin, 2015, 18(9): 1024-1029.
10.	Liu Xiaoyu, Wang Lizhen, DU Chengfei, et al. Mechanism of lens capsular rupture following blunt trauma: a finite element study. Comput Methods Biomech Biomed Engin, 2015, 18(8): 914-921.
11.	Rangarajan N, Kamalakkannan S B, Hasija V, et al. Finite element model of ocular injury in abusive head trauma. J AAPOS, 2009, 13(4): 364-369.
12.	Hans S A, Bawab S Y, Woodhouse M L. A finite element infant eye model to investigate retinal forces in shaken baby syndrome. Graefes Archive for Clinical and Experimental Ophthalmology, 2009, 247(4): 561-571.
13.	李凤鸣. 眼科全书. 北京: 人民卫生出版社, 1996.
14.	刘家琦, 李凤鸣. 实用眼科学: 眼科学. 北京: 人民卫生出版社, 2010.
15.	Weaver A A, Loftis K L, Tan J C, et al. CT based three-dimensional measurement of orbit and eye anthropometry. Invest Ophthalmol Vis Sci, 2010, 51(10): 4892-4897.
16.	陆霞, 王璇. 高性能战斗机飞行员加速度耐力选拔方法和标准的探讨. 中华航空医学杂志, 1995, 6(1): 14-17.
17.	Tripathy N K, Tyagi P K. Analysis of multi-axis acceleration profile in a supermanoeuvrable aircraft. Ind J Aerospace Med, 2006, 50(2): 7-12.
18.	Wolter J R. Coup-contrecoup mechanism of ocular injuries. Am J Ophthalmol, 1963, 56(5): 785-796.

1. 樊瑜波, 柳松杨. 航空生物力学. 医用生物力学, 2010, 25(4): 235-238.
2. 徐艳, 雍伟, 卫晓阳, 等. ±Gx 或±Gy 与+Gz 复合作用对人体抗荷耐力的影响. 航天医学与医学工程, 2015, 28(5): 336-340.
3. Paul M A. Asymmetric visual deficit at high sustained Gz. Aviat Space Environ Med, 1991, 62(6): 573-574.
4. Popper S E, Tripp L D. Unequal narrowing of the visual field in a +Gz environment. Aviat Space Environ Med, 1991, 62(10): 986-988.
5. 赵蓉, 王恩普, 田青, 等. 1960-2005 年军事飞行人员屈光不正构成变化的分析. 中华航空航天医学杂志, 2006, 17(2): 143-145.
6. 王雷, 梁艳闯. 中国民航飞行员眼病流行病学调查分析. 中国药物与临床, 2010, 10(9): 1024-1025.
7. 郑丽娟, 闫一力, 王丽, 等. 空勤人员屈光不正情况及相关因素调查分析. 国际眼科杂志, 2014, 14(10): 1914-1916.
8. Liu Xiaoyu, Wang Lizhen, Wang Chao, et al. Mechanism of traumatic retinal detachment in blunt impact: a finite element study. J Biomech, 2013, 46(7): 1321-1327.
9. Liu Xiaoyu, Wang Lizhen, Wang Chao, et al. Prediction of globe rupture caused by primary blast: a finite element analysis. Comput Methods Biomech Biomed Engin, 2015, 18(9): 1024-1029.
10. Liu Xiaoyu, Wang Lizhen, DU Chengfei, et al. Mechanism of lens capsular rupture following blunt trauma: a finite element study. Comput Methods Biomech Biomed Engin, 2015, 18(8): 914-921.
11. Rangarajan N, Kamalakkannan S B, Hasija V, et al. Finite element model of ocular injury in abusive head trauma. J AAPOS, 2009, 13(4): 364-369.
12. Hans S A, Bawab S Y, Woodhouse M L. A finite element infant eye model to investigate retinal forces in shaken baby syndrome. Graefes Archive for Clinical and Experimental Ophthalmology, 2009, 247(4): 561-571.
13. 李凤鸣. 眼科全书. 北京: 人民卫生出版社, 1996.
14. 刘家琦, 李凤鸣. 实用眼科学: 眼科学. 北京: 人民卫生出版社, 2010.
15. Weaver A A, Loftis K L, Tan J C, et al. CT based three-dimensional measurement of orbit and eye anthropometry. Invest Ophthalmol Vis Sci, 2010, 51(10): 4892-4897.
16. 陆霞, 王璇. 高性能战斗机飞行员加速度耐力选拔方法和标准的探讨. 中华航空医学杂志, 1995, 6(1): 14-17.
17. Tripathy N K, Tyagi P K. Analysis of multi-axis acceleration profile in a supermanoeuvrable aircraft. Ind J Aerospace Med, 2006, 50(2): 7-12.
18. Wolter J R. Coup-contrecoup mechanism of ocular injuries. Am J Ophthalmol, 1963, 56(5): 785-796.

Journal of Biomedical Engineering

A simulation study with finite element model on the unequal loss of peripheral vision caused by acceleration

Abstract Full text Figures/Tables Video References Cited by

Previous Article

Next Article

Format

Content