The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy
Objective. We aimed to evaluate the effect of inferior rectus muscle thickening on intraocular pressure (IOP) in patients with thyroid-associated ophthalmopathy (TAO). Materials and Methods. We analyzed 33 patients with TAO (50 eyes) who presented with hypotropia in the primary position. There was s...
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2021-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2021/9736247 |
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| author | Xiuhong Li Xu Bai Zhibin Liu Ming Cheng Jia Li Nian Tan Hongfeng Yuan |
| author_facet | Xiuhong Li Xu Bai Zhibin Liu Ming Cheng Jia Li Nian Tan Hongfeng Yuan |
| author_sort | Xiuhong Li |
| collection | DOAJ |
| description | Objective. We aimed to evaluate the effect of inferior rectus muscle thickening on intraocular pressure (IOP) in patients with thyroid-associated ophthalmopathy (TAO). Materials and Methods. We analyzed 33 patients with TAO (50 eyes) who presented with hypotropia in the primary position. There was significant eyeball movement restriction and inferior rectus muscle thickening was confirmed on computed tomography or magnetic resonance imaging. We measured IOP changes in patients with TAO and normal participants in the primary position and upgaze using Icare tonometer. Moreover, we measured the preoperative and postoperative IOP in 13 patients with hypotropia who underwent inferior rectus recession. Results. The average inferior rectus thickness in the TAO and control groups was 0.71 ± 0.13 mm and 0.36 ± 0.12 mm, respectively. In the TAO group, the mean IOP was 16.8 ± 2.1 mm Hg in primary position (hypotropia), which increased by 8.9 ± 2.7 mm Hg to 25.7 ± 3.1 mm Hg in upgaze (horizontal vision). In the control group, the mean IOP in the primary position (horizontal vision) was 15.1 ± 1.9 mm Hg, which increased by 2.5 ± 1.4 mm Hg to 17.6 ± 2.1 mm Hg in upgaze. Compared with normal participants, patients with TAO who presented inferior rectus muscle thickening had a significantly greater increase in the IOP P<0.0001. In the patients with TAO who underwent inferior rectus muscle recession, there was a postoperative reduction in the IOP in the horizontal vision by 9.4 ± 5.2 mm Hg. Conclusion. Inferior rectus muscle thickening in patients with TAO causes a significant increase in the IOP upon upgaze compared to that in normal individuals. Given the ease of misdiagnosis as glaucoma, IOP measurement in patients with TAO should be performed in the primary position. |
| format | Article |
| id | doaj-art-eebf5250e0a547e8b600ea4fb02ed737 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-eebf5250e0a547e8b600ea4fb02ed7372025-02-03T01:05:26ZengWileyJournal of Ophthalmology2090-004X2090-00582021-01-01202110.1155/2021/97362479736247The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated OphthalmopathyXiuhong Li0Xu Bai1Zhibin Liu2Ming Cheng3Jia Li4Nian Tan5Hongfeng Yuan6Department of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaDepartment of Ophthalmology, Daping Hospital, Army Medical University, No. 10,Changjiang Branch,Daping,Yuzhong District, Chongqing, ChinaObjective. We aimed to evaluate the effect of inferior rectus muscle thickening on intraocular pressure (IOP) in patients with thyroid-associated ophthalmopathy (TAO). Materials and Methods. We analyzed 33 patients with TAO (50 eyes) who presented with hypotropia in the primary position. There was significant eyeball movement restriction and inferior rectus muscle thickening was confirmed on computed tomography or magnetic resonance imaging. We measured IOP changes in patients with TAO and normal participants in the primary position and upgaze using Icare tonometer. Moreover, we measured the preoperative and postoperative IOP in 13 patients with hypotropia who underwent inferior rectus recession. Results. The average inferior rectus thickness in the TAO and control groups was 0.71 ± 0.13 mm and 0.36 ± 0.12 mm, respectively. In the TAO group, the mean IOP was 16.8 ± 2.1 mm Hg in primary position (hypotropia), which increased by 8.9 ± 2.7 mm Hg to 25.7 ± 3.1 mm Hg in upgaze (horizontal vision). In the control group, the mean IOP in the primary position (horizontal vision) was 15.1 ± 1.9 mm Hg, which increased by 2.5 ± 1.4 mm Hg to 17.6 ± 2.1 mm Hg in upgaze. Compared with normal participants, patients with TAO who presented inferior rectus muscle thickening had a significantly greater increase in the IOP P<0.0001. In the patients with TAO who underwent inferior rectus muscle recession, there was a postoperative reduction in the IOP in the horizontal vision by 9.4 ± 5.2 mm Hg. Conclusion. Inferior rectus muscle thickening in patients with TAO causes a significant increase in the IOP upon upgaze compared to that in normal individuals. Given the ease of misdiagnosis as glaucoma, IOP measurement in patients with TAO should be performed in the primary position.http://dx.doi.org/10.1155/2021/9736247 |
| spellingShingle | Xiuhong Li Xu Bai Zhibin Liu Ming Cheng Jia Li Nian Tan Hongfeng Yuan The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy Journal of Ophthalmology |
| title | The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy |
| title_full | The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy |
| title_fullStr | The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy |
| title_full_unstemmed | The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy |
| title_short | The Effect of Inferior Rectus Muscle Thickening on Intraocular Pressure in Thyroid-Associated Ophthalmopathy |
| title_sort | effect of inferior rectus muscle thickening on intraocular pressure in thyroid associated ophthalmopathy |
| url | http://dx.doi.org/10.1155/2021/9736247 |
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