Endoscopy-assisted vitrectomy in the anterior vitreous

Yu, Yong-Zhen; Zou, Yao; Zou, Xiulan

doi:10.18240/ijo.2018.03.23

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…27 Endoscopy has been used to guide epiretinal membrane peeling 29 in cases of retained lens fragments, a dislocated lens, or retained silicone oil 30 and is useful during PVR removal. [31][32][33][34] In cases of a large subretinal hemorrhage and fibrovascular pigment epithelial detachment, including choroidal neovascu larization, endoscopy can be used for hemorrhage removal without the need for a large retinotomy. 35 Endoscopy also has applications in pediatric vitreoretinal surgery.…”

Section: Discussionmentioning

confidence: 99%

Heads-up 3-Dimensional Visualization to Enhance Video Endoscopy During Vitreoretinal Surgery

Baldwin,

Miller

2024

Journal of VitreoRetinal Diseases

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Purpose: To describe 2 cases in which video endoscopy was combined with heads-up 3-dimensional (3D) visualization. Methods: The imaging modalities of the heads-up 3D visualization system and video endoscopy were combined by converting the endoscope’s S-Video output into a high-definition multimedia interface. The technique was used in 2 cases that included lens dislocation and endophthalmitis. Results: In the 2 cases, the heads-up split-screen view simplified the surgical setup. Simultaneously viewing the endoscopic image and widefield 3D image anecdotally appeared to improve ergonomics, help keep the probe oriented, and assist in guiding surgical movements endoscopically. Conclusions: These cases show the advantages of a heads-up 3D system to simultaneously view endoscopic and widefield images during ophthalmic endoscopy in vitreoretinal surgery.

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Section: Discussionmentioning

confidence: 99%

Heads-up 3-Dimensional Visualization to Enhance Video Endoscopy During Vitreoretinal Surgery

Baldwin,

Miller

2024

Journal of VitreoRetinal Diseases

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Endoscopic vitreoretinal surgery: principles, applications and new directions

2019

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Purpose To analyze endoscopic vitreoretinal surgery principles, applications, challenges and potential technological advances. Background Microendoscopic imaging permits vitreoretinal surgery for tissues that are not visible using operating microscopy ophthalmoscopy. Evolving instrumentation may overcome some limitations of current endoscopic technology. Analysis Transfer of the fine detail in endoscopic vitreoretinal images to extraocular video cameras is constrained currently by the caliber limitations of intraocular probes in ophthalmic surgery. Gradient index and Hopkins rod lenses provide high resolution ophthalmoscopy but restrict surgical manipulation. Fiberoptic coherent image guides offer surgical maneuverability but reduce imaging resolution. Coaxial endoscopic illumination can highlight delicate vitreoretinal structures difficult to image in chandelier or endoilluminator diffuse, side-scattered lighting. Microendoscopy’s ultra-high magnification video monitor images can reveal microscopic tissue details blurred partly by ocular media aberrations in contemporary surgical microscope ophthalmoscopy, thereby providing a lower resolution, invasive alternative to confocal fundus imaging. Endoscopic surgery is particularly useful when ocular media opacities or small pupils restrict or prevent transpupillary ophthalmoscopy. It has a growing spectrum of surgical uses that include the management of proliferative vitreoretinopathy and epiretinal membranes as well as the implantation of posterior chamber intraocular lenses and electrode arrays for intraretinal stimulation in retinitis pigmentosa. Microendoscopy’s range of applications will continue to grow with technological developments that include video microchip sensors, stereoscopic visualization, chromovitrectomy, digital image enhancement and operating room heads-up displays. Conclusion Microendoscopy is a robust platform for vitreoretinal surgery. Continuing clinical and technological innovation will help integrate it into the modern ophthalmic operating room of interconnected surgical microscopy, microendoscopy, vitrectomy machine and heads-up display instrumentation.

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Chronic hypotony management using endoscopy-assisted vitrectomy after severe ocular trauma or vitrectomy

Zou

Chen

et al. 2023

Int J Ophthalmol

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AIM: To report outcomes of endoscopy-assisted vitrectomy (EAV) in patients with chronic hypotony following severe ocular trauma or vitrectomy. METHODS: This was a retrospective, noncomparative case series. Ciliary bodies were evaluated using ultrasound biomicroscopy pre-operatively and direct visualisation intraoperatively. All selected individuals (seven patients/seven eyes) underwent EAV. Removal of ciliary membrane and traction, gas/silicone oil tamponade (GT/SOT), and scleral buckling (SB) were performed in selected eyes. Outcome measurements mainly included intraocular pressure (IOP) and best-corrected visual acuity (BCVA). RESULTS: Seven eyes from 7 male aphakic patients with a mean age of 45 (range, 20-68)y were included in this study; the average follow-up time was 12 (9-15)mo. GT was performed in 2 eyes; membrane peeling (MP) and SOT in 2 eyes; and MP, SOT, and SB in 3 eyes. The mean pre- and post-operative IOP were 4.5 (range, 4.0±0.11 to 4.8±0.2) mm Hg and 9.9 (range, 5.6±0.17 to 12.1±0.2) mm Hg at 52wk (12mo), respectively. BCVA improved in six eyes; one eye still showed light perception, and no bulbi phthisis was observed. CONCLUSION: Endoscopy offers improved judgment and recognition and has an improved prognosis for chronic hypotony. Therefore, endoscopy can be an effective and promising operative technique for chronic traumatic hypotony management.

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Endoscopy-assisted vitrectomy in the anterior vitreous

Cited by 3 publications

References 41 publications

Heads-up 3-Dimensional Visualization to Enhance Video Endoscopy During Vitreoretinal Surgery

Heads-up 3-Dimensional Visualization to Enhance Video Endoscopy During Vitreoretinal Surgery

Endoscopic vitreoretinal surgery: principles, applications and new directions

Chronic hypotony management using endoscopy-assisted vitrectomy after severe ocular trauma or vitrectomy

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