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Vision loss & recovery after baerveldt aqueous tube shunt implantation
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نویسنده
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kim e.l. ,tran j. ,t�teberg-harms m. ,chahal j. ,rhee d. ,chopra v. ,francis b.
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منبع
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journal of ophthalmology - 2017 - دوره : 2017 - شماره : 0
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چکیده
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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. � 2017 esther lee kim et al.
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آدرس
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university of southern california eye institute,department of ophthalmology,keck school of medicine,university of southern california,los angeles,ca,united states,massachusetts eye and ear infirmary,department of ophthalmology,harvard medical school,boston,ma,united states,doheny eye institute,david geffen school of medicine,university of california,los angeles,ca, United States, university of southern california eye institute,department of ophthalmology,keck school of medicine,university of southern california,los angeles,ca, United States, massachusetts eye and ear infirmary,department of ophthalmology,harvard medical school,boston,ma,united states,department of ophthalmology,university hospital zurich,zurich, Switzerland, university of southern california eye institute,department of ophthalmology,keck school of medicine,university of southern california,los angeles,ca, United States, massachusetts eye and ear infirmary,department of ophthalmology,harvard medical school,boston,ma,united states,department of ophthalmology and visual sciences,case western medical center,cleveland,oh, United States, doheny eye institute,david geffen school of medicine,university of california,los angeles,ca, United States, doheny eye institute,david geffen school of medicine,university of california,los angeles,ca, United States
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Authors
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