Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography
Purpose. To observe the recovery process of postexercise Schlemm’s canal (SC) and intraocular pressure (IOP) in healthy individuals. Methods. Twenty healthy individuals were recruited. SC and IOP were evaluated before exercise, immediately after exercise, and 15, 30, and 60 minutes after exercise. S...
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| Format: | Article |
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Wiley
2018-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2018/8513760 |
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| author | Mu Li Xiaoqin Yan Zhaoxia Luo Hong Zhang |
| author_facet | Mu Li Xiaoqin Yan Zhaoxia Luo Hong Zhang |
| author_sort | Mu Li |
| collection | DOAJ |
| description | Purpose. To observe the recovery process of postexercise Schlemm’s canal (SC) and intraocular pressure (IOP) in healthy individuals. Methods. Twenty healthy individuals were recruited. SC and IOP were evaluated before exercise, immediately after exercise, and 15, 30, and 60 minutes after exercise. Superior, inferior, nasal, and temporal SC quadrants were evaluated using swept-source optical coherence tomography (SS-OCT). Results. Average SC area (3726.81 ± 1167.06 vs. 4660.57 ± 1284.82 µm2) and perimeter (324.11 ± 58.95 vs. 367.19 ± 73.34 µm) increased, and IOP (14.02 ± 2.33 vs. 11.65 ± 1.90 mmHg) decreased significantly during exercise (all p<0.001). After exercise, both SC and IOP recovered to preexercise values, and the recovery time for postexercise SC dimensions (15 minutes) was shorter than that for postexercise IOP (60 minutes). After adjusting for age, gender, axial length, central corneal thickness, and spherical equivalent, postexercise changes in SC dimensions were not significantly associated with postexercise changes in IOP compared with preexercise values (all p>0.05). There were no significant differences in the observable SC proportion before and after exercise (all p>0.05). Conclusions. The exercise-induced SC expansion and IOP reduction could recover to preexercise values after exercise, and SC recovered to preexercise values ahead of IOP. Moreover, SC might be regulated by the sympathetic nerves and could be an important causative factor of changes in IOP during and after exercise. |
| format | Article |
| id | doaj-art-cd9e32b2e8b74a1fb2d19af8a8f34d22 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-cd9e32b2e8b74a1fb2d19af8a8f34d222025-02-03T01:21:14ZengWileyJournal of Ophthalmology2090-004X2090-00582018-01-01201810.1155/2018/85137608513760Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence TomographyMu Li0Xiaoqin Yan1Zhaoxia Luo2Hong Zhang3Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaPurpose. To observe the recovery process of postexercise Schlemm’s canal (SC) and intraocular pressure (IOP) in healthy individuals. Methods. Twenty healthy individuals were recruited. SC and IOP were evaluated before exercise, immediately after exercise, and 15, 30, and 60 minutes after exercise. Superior, inferior, nasal, and temporal SC quadrants were evaluated using swept-source optical coherence tomography (SS-OCT). Results. Average SC area (3726.81 ± 1167.06 vs. 4660.57 ± 1284.82 µm2) and perimeter (324.11 ± 58.95 vs. 367.19 ± 73.34 µm) increased, and IOP (14.02 ± 2.33 vs. 11.65 ± 1.90 mmHg) decreased significantly during exercise (all p<0.001). After exercise, both SC and IOP recovered to preexercise values, and the recovery time for postexercise SC dimensions (15 minutes) was shorter than that for postexercise IOP (60 minutes). After adjusting for age, gender, axial length, central corneal thickness, and spherical equivalent, postexercise changes in SC dimensions were not significantly associated with postexercise changes in IOP compared with preexercise values (all p>0.05). There were no significant differences in the observable SC proportion before and after exercise (all p>0.05). Conclusions. The exercise-induced SC expansion and IOP reduction could recover to preexercise values after exercise, and SC recovered to preexercise values ahead of IOP. Moreover, SC might be regulated by the sympathetic nerves and could be an important causative factor of changes in IOP during and after exercise.http://dx.doi.org/10.1155/2018/8513760 |
| spellingShingle | Mu Li Xiaoqin Yan Zhaoxia Luo Hong Zhang Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography Journal of Ophthalmology |
| title | Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography |
| title_full | Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography |
| title_fullStr | Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography |
| title_full_unstemmed | Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography |
| title_short | Postexercise Recovery of Schlemm’s Canal and Intraocular Pressure in Healthy Individuals: An Observational Study Using Swept-Source Optical Coherence Tomography |
| title_sort | postexercise recovery of schlemm s canal and intraocular pressure in healthy individuals an observational study using swept source optical coherence tomography |
| url | http://dx.doi.org/10.1155/2018/8513760 |
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