Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation
This study aims to determine the course of vision loss after Baerveldt aqueous tube shunt placement and identify risk factors associated with unexplained severe long-term vision loss, or snuff-out. We retrospectively reviewed 247 eyes of 222 patients who underwent Baerveldt implantations at one of t...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2017/4140305 |
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| author | Esther Lee Kim Jeffrey Tran Marc Töteberg-Harms Jasdeep Chahal Douglas Rhee Vikas Chopra Brian Francis |
| author_facet | Esther Lee Kim Jeffrey Tran Marc Töteberg-Harms Jasdeep Chahal Douglas Rhee Vikas Chopra Brian Francis |
| author_sort | Esther Lee Kim |
| collection | DOAJ |
| description | This study aims to determine the course of vision loss after Baerveldt aqueous tube shunt placement and identify risk factors associated with unexplained severe long-term vision loss, or snuff-out. We retrospectively reviewed 247 eyes of 222 patients who underwent Baerveldt implantations at one of two academic institutions. Postoperative vision loss at 6 months following surgery was categorized as mild-to-moderate versus severe and long-term versus transient. Long-term vision loss, defined as 3 or more lines of Snellen visual acuity (VA) loss compared with preoperative VA, occurred in 63 of 247 eyes (25.5%), and 39 had mild-to-moderate and 24 had severe loss. Of these 63 eyes, 18 had no identifiable cause of vision loss. On multivariate analysis, poorer Snellen VA on postoperative day 1 (POD1) was found to be a significant risk factor for long-term vision loss (p=0.005). In addition, the negative change in preoperative versus POD1 Snellen VA (p=0.021) and the presence of split fixation involving the inferonasal quadrant on preoperative Humphrey visual field (p=0.044) were significant risk factors for snuff-out. Transient vision loss occurred in 76 of 242 eyes (30.8%). In conclusion, vision loss is not uncommon after Baerveldt surgery, with snuff-out occurring in 2.4% of cases in this study. |
| format | Article |
| id | doaj-art-b8c95bfc76034b4997bddb4f1658c0b6 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-b8c95bfc76034b4997bddb4f1658c0b62025-02-03T01:20:52ZengWileyJournal of Ophthalmology2090-004X2090-00582017-01-01201710.1155/2017/41403054140305Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt ImplantationEsther Lee Kim0Jeffrey Tran1Marc Töteberg-Harms2Jasdeep Chahal3Douglas Rhee4Vikas Chopra5Brian Francis6University of Southern California Eye Institute, Department of Ophthalmology, Keck School of Medicine, The University of Southern California, Los Angeles, CA, USAUniversity of Southern California Eye Institute, Department of Ophthalmology, Keck School of Medicine, The University of Southern California, Los Angeles, CA, USAMassachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, MA, USAUniversity of Southern California Eye Institute, Department of Ophthalmology, Keck School of Medicine, The University of Southern California, Los Angeles, CA, USAMassachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, MA, USADoheny Eye Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USADoheny Eye Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USAThis study aims to determine the course of vision loss after Baerveldt aqueous tube shunt placement and identify risk factors associated with unexplained severe long-term vision loss, or snuff-out. We retrospectively reviewed 247 eyes of 222 patients who underwent Baerveldt implantations at one of two academic institutions. Postoperative vision loss at 6 months following surgery was categorized as mild-to-moderate versus severe and long-term versus transient. Long-term vision loss, defined as 3 or more lines of Snellen visual acuity (VA) loss compared with preoperative VA, occurred in 63 of 247 eyes (25.5%), and 39 had mild-to-moderate and 24 had severe loss. Of these 63 eyes, 18 had no identifiable cause of vision loss. On multivariate analysis, poorer Snellen VA on postoperative day 1 (POD1) was found to be a significant risk factor for long-term vision loss (p=0.005). In addition, the negative change in preoperative versus POD1 Snellen VA (p=0.021) and the presence of split fixation involving the inferonasal quadrant on preoperative Humphrey visual field (p=0.044) were significant risk factors for snuff-out. Transient vision loss occurred in 76 of 242 eyes (30.8%). In conclusion, vision loss is not uncommon after Baerveldt surgery, with snuff-out occurring in 2.4% of cases in this study.http://dx.doi.org/10.1155/2017/4140305 |
| spellingShingle | Esther Lee Kim Jeffrey Tran Marc Töteberg-Harms Jasdeep Chahal Douglas Rhee Vikas Chopra Brian Francis Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation Journal of Ophthalmology |
| title | Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation |
| title_full | Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation |
| title_fullStr | Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation |
| title_full_unstemmed | Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation |
| title_short | Vision Loss and Recovery after Baerveldt Aqueous Tube Shunt Implantation |
| title_sort | vision loss and recovery after baerveldt aqueous tube shunt implantation |
| url | http://dx.doi.org/10.1155/2017/4140305 |
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