{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T10:59:29Z","timestamp":1770289169660,"version":"3.49.0"},"reference-count":15,"publisher":"S. Karger AG","issue":"1","license":[{"start":{"date-parts":[[2018,1,5]],"date-time":"2018-01-05T00:00:00Z","timestamp":1515110400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2018,1,5]],"date-time":"2018-01-05T00:00:00Z","timestamp":1515110400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Rep Ophthalmol"],"abstract":"<jats:p>&lt;b&gt;&lt;i&gt;Purpose:&lt;\/i&gt;&lt;\/b&gt; To report the results using an ologen Collagen Matrix as a patch graft in eyes with tubal exposure after tube shunt surgery. &lt;b&gt;&lt;i&gt;Case Reports:&lt;\/i&gt;&lt;\/b&gt; Case 1 was an 82-year-old man with tubal exposure in his right eye 26 months after receiving a Baerveldt glaucoma implant. The tube was covered by surrounding conjunctival tissue combined with subconjunctival placement of an ologen Collagen Matrix as a patch graft. Two years after implantation, the tube was not exposed. Anterior-segment optical coherence tomography (AS-OCT) showed dense conjunctival tissue over the tube. Case 2 was an 82-year-old man with peripheral keratitis, anterior scleritis, and secondary glaucoma in the right eye who underwent tube shunt surgery using an Ahmed glaucoma valve and cataract surgery. Intraoperatively, scleritis-related scleral thinning prevented the tube from being covered fully by an autologous scleral flap. An ologen Collagen Matrix was placed over the scleral flap as a patch graft. Seventeen months after implantation, the tube was not exposed. Case 3 was a 52-year-old man with diabetic maculopathy and steroid-induced glaucoma in the right eye who underwent tube shunt surgery using an Ahmed glaucoma valve. Intraoperatively, a flap defect prevented the tube from being covered fully by an autologous scleral flap. An ologen Collagen Matrix was placed over the scleral flap as a patch graft. Three weeks postoperatively, AS-OCT showed thick subconjunctival tissue over the tube. Three months after implantation, the tube was not exposed. &lt;b&gt;&lt;i&gt;Conclusions:&lt;\/i&gt;&lt;\/b&gt; The ologen Collagen Matrix can be used successfully as a patch graft to prevent and treat tubal exposure after tube shunt surgery.<\/jats:p>","DOI":"10.1159\/000485549","type":"journal-article","created":{"date-parts":[[2018,1,5]],"date-time":"2018-01-05T22:01:47Z","timestamp":1515189707000},"page":"9-16","source":"Crossref","is-referenced-by-count":9,"title":["Patch Grafting Using an Ologen Collagen Matrix to Manage Tubal Exposure in Glaucoma Tube Shunt Surgery"],"prefix":"10.1159","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6512-7203","authenticated-orcid":false,"given":"Masaki","family":"Tanito","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ichiya","family":"Sano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshifumi","family":"Ikeda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Etsuko","family":"Fujihara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2018,1,5]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.2147\/OPTH.S104029"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.3928\/23258160-20160601-08"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.5005\/jp-journals-10008-1121"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1007\/s00417-007-0744-9"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0144595"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1111\/aos.12888"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1111\/aos.13288"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1097\/IJG.0b013e3182027ab0"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1186\/s12886-015-0130-z"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.12688\/f1000research.9232.1"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1111\/j.1755-3768.2009.01753.x"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1038\/eye.2010.106"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1136\/bjophthalmol-2013-303357"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1038\/eye.2017.98"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1159\/000356400"}],"container-title":["Case Reports in Ophthalmology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/485549","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/485549","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T16:26:15Z","timestamp":1745425575000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000485549"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,5]]},"references-count":15,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2018,5,7]]}},"URL":"https:\/\/doi.org\/10.1159\/000485549","archive":["Portico"],"relation":{},"ISSN":["1663-2699"],"issn-type":[{"value":"1663-2699","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,5]]}}}