Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis
Abstract Introduction The purpose of this study was to describe the results using the Nd:YAG laser to reopen blocked glaucoma tube shunts in three ocular chemical burn patients with Boston keratoprostesis type I (KPro) implantation. Methods The medical records of the three patients at Zhongshan Opht...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Adis, Springer Healthcare
2019-04-01
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| Series: | Ophthalmology and Therapy |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40123-019-0186-6 |
| _version_ | 1818317412137697280 |
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| author | Jianjun Gu Yuying Zhang Jiajie Zhai Zhancong Ou Jiaqi Chen |
| author_facet | Jianjun Gu Yuying Zhang Jiajie Zhai Zhancong Ou Jiaqi Chen |
| author_sort | Jianjun Gu |
| collection | DOAJ |
| description | Abstract Introduction The purpose of this study was to describe the results using the Nd:YAG laser to reopen blocked glaucoma tube shunts in three ocular chemical burn patients with Boston keratoprostesis type I (KPro) implantation. Methods The medical records of the three patients at Zhongshan Ophthalmic Centre were reviewed. Results Patient 1, who had glaucoma secondary to KPro implantation, had undergone Ahmed glaucoma valve (AGV) implantation to control an elevated intraocular pressure (IOP). One day after surgery, the tube was observed to be embedded in the residual lens capsule. The capsule was opened by one 1.5 mJ laser pulse, with a subsequent drop in the IOP. In patient 2, the AGV and KPro had been implanted simultaneously. One month after surgery, the IOP increased to 35 mmHg, estimated by palpation, and a vitreous gel was seen blocking the tube. A Nd:YAG laser pulse was used to open the occluded tube. In patient 3, the tube was blocked by iris tissue; Nd:YAG laser treatment opened the tube. Conclusions The cases described here indicate that Nd:YAG laser treatment seems to be a valuable option for opening an occluded AGV tube in patients with KPro implantation. The correct location of the tube tip, visualized through the KPro optic, is essential for laser treatment. |
| first_indexed | 2024-12-13T09:36:55Z |
| format | Article |
| id | doaj.art-1cd1831197af48659afb475d5da02838 |
| institution | Directory Open Access Journal |
| issn | 2193-8245 2193-6528 |
| language | English |
| last_indexed | 2024-12-13T09:36:55Z |
| publishDate | 2019-04-01 |
| publisher | Adis, Springer Healthcare |
| record_format | Article |
| series | Ophthalmology and Therapy |
| spelling | doaj.art-1cd1831197af48659afb475d5da028382022-12-21T23:52:19ZengAdis, Springer HealthcareOphthalmology and Therapy2193-82452193-65282019-04-018233333910.1007/s40123-019-0186-6Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I KeratoprosthesisJianjun Gu0Yuying Zhang1Jiajie Zhai2Zhancong Ou3Jiaqi Chen4State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen UniversityState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen UniversityGuangdong Visual and Ophthalmology Research InstituteState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen UniversityState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen UniversityAbstract Introduction The purpose of this study was to describe the results using the Nd:YAG laser to reopen blocked glaucoma tube shunts in three ocular chemical burn patients with Boston keratoprostesis type I (KPro) implantation. Methods The medical records of the three patients at Zhongshan Ophthalmic Centre were reviewed. Results Patient 1, who had glaucoma secondary to KPro implantation, had undergone Ahmed glaucoma valve (AGV) implantation to control an elevated intraocular pressure (IOP). One day after surgery, the tube was observed to be embedded in the residual lens capsule. The capsule was opened by one 1.5 mJ laser pulse, with a subsequent drop in the IOP. In patient 2, the AGV and KPro had been implanted simultaneously. One month after surgery, the IOP increased to 35 mmHg, estimated by palpation, and a vitreous gel was seen blocking the tube. A Nd:YAG laser pulse was used to open the occluded tube. In patient 3, the tube was blocked by iris tissue; Nd:YAG laser treatment opened the tube. Conclusions The cases described here indicate that Nd:YAG laser treatment seems to be a valuable option for opening an occluded AGV tube in patients with KPro implantation. The correct location of the tube tip, visualized through the KPro optic, is essential for laser treatment.http://link.springer.com/article/10.1007/s40123-019-0186-6BostonKeratoprosthesisGlaucoma drainage deviceNd:YAG laserTube obstruction |
| spellingShingle | Jianjun Gu Yuying Zhang Jiajie Zhai Zhancong Ou Jiaqi Chen Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis Ophthalmology and Therapy Boston Keratoprosthesis Glaucoma drainage device Nd:YAG laser Tube obstruction |
| title | Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis |
| title_full | Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis |
| title_fullStr | Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis |
| title_full_unstemmed | Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis |
| title_short | Nd:YAG Laser for Ahmed Tube Shunt Blockage in Patients Implanted with Boston Type I Keratoprosthesis |
| title_sort | nd yag laser for ahmed tube shunt blockage in patients implanted with boston type i keratoprosthesis |
| topic | Boston Keratoprosthesis Glaucoma drainage device Nd:YAG laser Tube obstruction |
| url | http://link.springer.com/article/10.1007/s40123-019-0186-6 |
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