ArticleJAMA ophthalmology2017
Measurement of Gamma-Irradiated Corneal Patch Graft Thickness After Aqueous Drainage Device Surgery.
Article in JAMA ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Outcomes of the Shunt Tube Exposure Prevention Study: A Randomized Clinical Trial.Ophthalmology. GlaucomaTrial
- Risk factors for tube exposure following Baerveldt glaucoma implantation and overlying tissue thickness assessed by anterior segment optical coherence tomography.Japanese journal of ophthalmology · 2026Article
- Extrusion-Free Survival Following Glaucoma Drainage Device Surgery Using EverPatch PlusJournal of clinical medicine · 2026Article
- Comparing the use of Tutopatch® pericardium with Tutoplast® fascia lata in the context of PAUL® glaucoma implant surgery: an anterior segment OCT study.Eye (London, England) · 2025Article
- Early Postoperative Conjunctival Complications Leading to Exposure of Surgically Implanted CorNeat EverPatch Devices.Ophthalmology · 2025Article
- Assessing patient cosmetic satisfaction after glaucoma drainage device surgery for different patch grafts.BMC ophthalmology · 2021Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Importance: Exposure of the tube of an aqueous drainage device (ADD) through the conjunctiva is a serious complication of ADD surgery. Although placement of gamma-irradiated sterile cornea (GISC) as a patch graft over the tube is commonly performed, exposures still occur. Objectives: To measure GISC patch graft thickness as a function of time after surgery, estimate the rate of graft thinning, and determine risk factors for graft thinning. Design, Setting, and Participants: Cross-sectional study of graft thickness using anterior segment optic coherence tomography (AS-OCT) was conducted at the Wilmer Eye Institute at Johns Hopkins Hospital. A total of 107 patients (120 eyes, 120 ADDs) 18 years or older who underwent ADD surgery at Johns Hopkins with GISC patch graft between July 1, 2010, and October 31, 2016, were enrolled. Intervention: Implantation of ADD with placement of GISC patch graft over the tube. Main Outcomes and Measures: Graft thickness vs time after ADD surgery and risk factors for undetectable graft. Results: Of the 107 patients included in the analysis, the mean (SD) age of the cohort was 64 (16.2) years, 49 (45.8%) were male, and 43 (40.2%) were African American. The mean time of measurement after surgery was 1.7 years (range, 1 day to 6 years). Thinner grafts were observed as the time after surgery lengthened (β regression coefficient, -60 µm per year since surgery; 95% CI, -80 µm to -40 µm). The odds ratio of undetectable grafts per year after ADD surgery was 2.1 (95% CI, 1.5-3.0; P < .001). Age, sex, race, type of ADD, quadrant of ADD placement, diagnosis of uveitis or dry eye, and prior conjunctival surgery were not correlated with the presence or absence of the graft. Conclusions and Relevance: Gamma-irradiated sterile corneal patch grafts do not always retain their integrity after ADD surgery. Data from this cross-sectional study showed that on average, the longer the time after surgery, the thinner the graft. These findings suggest that placement of a GISC patch graft is no guarantee against tube exposure, and that better strategies are needed for preventing this complication.
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