scholarly journals Intraoperative optical coherence tomography and ab interno trabecular meshwork surgery with the Trabectome

2017 ◽  
Vol Volume 11 ◽  
pp. 1755-1760 ◽  
Author(s):  
Bernd Junker ◽  
Jens Jordan ◽  
Carsten Framme ◽  
Amelie Pielen
Keyword(s):  
Optical Coherence Tomography ◽  
Trabecular Meshwork ◽  
Optical Coherence ◽  
Intraoperative Optical Coherence Tomography ◽  
Ab Interno

scholarly journals Optical Coherence Tomography Observation of Gonio Structures during Microhook Ab Interno Trabeculotomy

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Masaki Tanito
Keyword(s):  
Optical Coherence Tomography ◽  
Real Time ◽  
Trabecular Meshwork ◽  
Case Series ◽  
Optical Coherence ◽  
The Real ◽  
Line Scan ◽  
Feasibility Assessment ◽  
Integrated Optical ◽  
Ab Interno

Introduction. Intraoperative observation of ocular structures using microscope-integrated optical coherence tomography (iOCT) has been adopted recently. I report my initial feasibility assessment of iOCT for the incised trabecular meshwork observation during microhook ab interno trabeculotomy. Case Series. Both the nasal and temporal sides or either side of the trabecular meshwork/inner wall of Schlemm’s canal was incised more than 3 clock hours. After then, under observation using a Swan-Jacob gonioprism lens with the real-time 5-line scan mode, OCT images of the area were successfully acquired in 10 (83%) of 12 sides in nine eyes. Based on the appearance of the acquired images of the 10 sides, the trabeculotomy cleft could be classified into three incisional patterns, that is, six (60%) anterior-opening patterns (posterior-based flap), three (30%) middle-opening patterns (posterior- and anterior-based flaps), and one (10%) posterior-opening pattern (anterior-based flap), according to the predominant locations of the trabecular meshwork flaps. Conclusion. Intraoperative observation of the gonio structures including the trabeculotomy cleft was feasible using the RESCAN 700 in combination with a gonioprism.

scholarly journals Observation of Gonio Structures during Microhook Ab Interno Trabeculotomy Using a Novel Digital Microscope with Integrated Intraoperative Optical Coherence Tomography

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Akiko Ishida ◽  
Kazunobu Sugihara ◽  
Tomoki Shirakami ◽  
Aika Tsutsui ◽  
Kaoru Manabe ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Intraoperative Imaging ◽  
Blood Clot ◽  
Region Of Interest ◽  
Glaucoma Surgery ◽  
Optical Coherence ◽  
The Novel ◽  
Intraoperative Optical Coherence Tomography ◽  
Digital Microscope ◽  
Ab Interno

Purpose. Observation of ocular structures using microscope-integrated intraoperative optical coherence tomography (iOCT) has been adopted. Using the novel digital ophthalmic microscope, ARTEVO 800 with iOCT, we tested the feasibility of trabecular meshwork (TM) imaging during microhook ab interno trabeculotomy, a minimally invasive glaucoma surgery. Methods. The nasal and temporal sides of the TM/inner wall of Schlemm’s canal were incised more than 3 clock hours in 14 glaucomatous eyes of 10 patients. To observe the trabeculotomy site, iOCT was performed with the real-time five-line scan mode under observation using a Swan-Jacob gonioprism lens. The success of the imaging and visibility of the trabeculotomy cleft and its incisional patterns (i.e., anterior, middle, or posterior pattern) were determined by reviewing the iOCT video files. Results. OCT images of the region of interest were acquired successfully in 100% of the 28 nasal or temporal sides in 14 eyes, although the trabeculotomy cleft was not visualized in four (14%) sides due to blockage of the OCT signal by a blood clot. Based on the predominant locations of the TM flaps in 24 of the acquired images, the trabeculotomy clefts were classified as anterior incisional patterns in 13 (54%), middle incisional patterns in nine (38%), and posterior incisional patterns in two (8%). Conclusion. Intraoperative imaging of the gonio structures including the trabeculotomy cleft was feasible using the ARTEVO 800 with iOCT in combination with a gonioprism.

scholarly journals Intraoperative optical coherence tomography guided corneal sweeping for removal of remnant Interface fluid during ultra-thin Descemet stripping automated endothelial keratoplasty

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Michael Mimouni ◽  
Martin Kronschläger ◽  
Manuel Ruiss ◽  
Oliver Findl
Keyword(s):  
Optical Coherence Tomography ◽  
Retrospective Study ◽  
Optical Coherence ◽  
Endothelial Keratoplasty ◽  
Intraoperative Optical Coherence Tomography ◽  
Graft Thickness

Abstract Background Remnant interface fluid following Descemet stripping automated endothelial keratoplasty (DSAEK) is associated with postoperative detachments. The aim of this study was to assess outcomes of intraoperative optical coherence tomography (iOCT) guided meticulous peripheral corneal sweeping for removal of interface fluid during ultra-thin (UT) DSAEK. Methods This retrospective study included all eyes underwent iOCT guided UT-DSAEK from October 2016 to February 2018 at the Hanusch Hospital, Vienna, Austria. Peripheral meticulous corneal sweeping was performed to remove excess fluid. Central graft thickness (CGT) was measured prior to surgery, after graft bubbling and after corneal sweeping. Remnant interface fluid rates were compared between eyes that underwent rebubbling and those that did not. Results Overall, 28 eyes of 28 patients with a mean age of 73.9 ± 10.0 years were included. An iOCT guided meticulous peripheral sweeping was performed in 89.3% (n = 25) of the cases. Following 84% (n = 21) of the peripheral sweeping performed, remnant fluid was no longer identified. Following peripheral sweeping the interface fluid height was reduced from 17.31 ± 15.96 μm to 3.46 ± 9.52 μm (p < 0.001) and CGT was reduced by 7% (p < 0.001). Rebubbling was performed in 17.9% (n = 5) of the cases. The rebubbling group had a greater proportion of patients that had remnant fluid identified with iOCT at the end of surgery despite meticulous peripheral sweeping (60.0% versus 4.4%, p = 0.01). Conclusion The iOCT identified subclinical remnant fluid in nearly 90% of UT-DSAEK cases. An iOCT guided peripheral corneal sweeping led to resolution of interface fluid in a majority of cases. Eyes with persistent remnant fluid despite peripheral corneal sweeping are more likely to require subsequent rebubbling.

Assessment of trabecular meshwork width using swept source optical coherence tomography

2013 ◽  
Vol 251 (6) ◽  
pp. 1587-1592 ◽  
Author(s):  
Tin A. Tun ◽  
Mani Baskaran ◽  
Ce Zheng ◽  
Lisandro M. Sakata ◽  
Shamira A. Perera ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Trabecular Meshwork ◽  
Optical Coherence ◽  
Swept Source
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