Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma
Purpose. To quantify changes in anterior segment (AS) parameters after laser peripheral iridotomy (LPI) using AS-optical coherence tomography (OCT) of iris bombe. Method. AS images of eight eyes were captured before and after iris bombe and more than 2 weeks after LPI (post-LPI) using AS-OCT. We com...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2016/8496201 |
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| author | Wakako Ikegawa Takashi Suzuki Koji Namiguchi Shiro Mizoue Atsushi Shiraishi Yuichi Ohashi |
| author_facet | Wakako Ikegawa Takashi Suzuki Koji Namiguchi Shiro Mizoue Atsushi Shiraishi Yuichi Ohashi |
| author_sort | Wakako Ikegawa |
| collection | DOAJ |
| description | Purpose. To quantify changes in anterior segment (AS) parameters after laser peripheral iridotomy (LPI) using AS-optical coherence tomography (OCT) of iris bombe. Method. AS images of eight eyes were captured before and after iris bombe and more than 2 weeks after LPI (post-LPI) using AS-OCT. We compared the following AS parameters: anterior chamber depth (ACD), anterior chamber volume (ACV), iris curvature (IC), iris thickness at 500 μm from the scleral spur (IT-1) in the middle between the iris root and pupillary margin (IT-2) and 500 μm from the pupillary margin (IT-3) to the anterior chamber angle (ACA) (angle opening distance [AOD750]), and trabecular iris space area. Results. Mean IT-1 and IT-3, but not IT-2, were lower after iris bombe (IT-1, P=0.001; IT-2, P=0.081; and IT-3, P=0.001). There were no significant differences between ACD at pre-LPI and before iris bombe (P=0.096). The mean ACV and AOD750 of iris bombe increased at post-LPI (ACV, P<0.01, and AOD750, P<0.05). The mean IT-1, IT-2, and IT-3 increased at post-LPI (all, P≤0.01). IC decreased at post-LPI (P<0.001), and ACD at post-LPI did not change. Conclusions. The iris extends and becomes thinner during iris bombe. LPI during bombe decreases the IC and increases the ACV and ACA. |
| format | Article |
| id | doaj-art-40df951efa5c4377857364962e79fdb0 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-40df951efa5c4377857364962e79fdb02025-02-03T01:32:55ZengWileyJournal of Ophthalmology2090-004X2090-00582016-01-01201610.1155/2016/84962018496201Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary GlaucomaWakako Ikegawa0Takashi Suzuki1Koji Namiguchi2Shiro Mizoue3Atsushi Shiraishi4Yuichi Ohashi5Department of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanDepartment of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanDepartment of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanDepartment of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanDepartment of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanDepartment of Ophthalmology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, JapanPurpose. To quantify changes in anterior segment (AS) parameters after laser peripheral iridotomy (LPI) using AS-optical coherence tomography (OCT) of iris bombe. Method. AS images of eight eyes were captured before and after iris bombe and more than 2 weeks after LPI (post-LPI) using AS-OCT. We compared the following AS parameters: anterior chamber depth (ACD), anterior chamber volume (ACV), iris curvature (IC), iris thickness at 500 μm from the scleral spur (IT-1) in the middle between the iris root and pupillary margin (IT-2) and 500 μm from the pupillary margin (IT-3) to the anterior chamber angle (ACA) (angle opening distance [AOD750]), and trabecular iris space area. Results. Mean IT-1 and IT-3, but not IT-2, were lower after iris bombe (IT-1, P=0.001; IT-2, P=0.081; and IT-3, P=0.001). There were no significant differences between ACD at pre-LPI and before iris bombe (P=0.096). The mean ACV and AOD750 of iris bombe increased at post-LPI (ACV, P<0.01, and AOD750, P<0.05). The mean IT-1, IT-2, and IT-3 increased at post-LPI (all, P≤0.01). IC decreased at post-LPI (P<0.001), and ACD at post-LPI did not change. Conclusions. The iris extends and becomes thinner during iris bombe. LPI during bombe decreases the IC and increases the ACV and ACA.http://dx.doi.org/10.1155/2016/8496201 |
| spellingShingle | Wakako Ikegawa Takashi Suzuki Koji Namiguchi Shiro Mizoue Atsushi Shiraishi Yuichi Ohashi Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma Journal of Ophthalmology |
| title | Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma |
| title_full | Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma |
| title_fullStr | Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma |
| title_full_unstemmed | Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma |
| title_short | Changes in Anterior Segment Morphology of Iris Bombe before and after Laser Peripheral Iridotomy in Patients with Uveitic Secondary Glaucoma |
| title_sort | changes in anterior segment morphology of iris bombe before and after laser peripheral iridotomy in patients with uveitic secondary glaucoma |
| url | http://dx.doi.org/10.1155/2016/8496201 |
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