Vital Dyes in Vitreomacular Surgery

Bracha, Peter; Ciulla, Thomas A.; Baumal, Caroline R.

doi:10.3928/23258160-20181002-07

Cited by 15 publications

(3 citation statements)

References 120 publications

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“…Accordingly, this may be used to accurately measure the HD and TD; however, future studies are warranted to test this hypothesis. Second, although the dose and exposure time of indocyanine green was minimized and it is relatively safe, its potential retinal toxicity still requires attention ( 48 , 49 ). Third, the postoperative follow-up period was not exactly 12 months due to patient compliance issues.…”

Section: Discussionmentioning

confidence: 99%

Total and horizontal distances of the foveal stereotaxic displacement can be prognostic indicators for patients with idiopathic epiretinal membrane

Zhang

Mao²,

Lao³

et al. 2023

Front. Med.

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IntroductionThis study aimed to examine the foveal stereo deviations in the different ectopic inner foveal layer (EIFL) stages of idiopathic epiretinal membrane (iERM) and assess its predictive utility for the baseline and postoperative best-corrected visual acuity (BCVA).MethodsBased on the calculational combination of foveal displacements in the horizontal and vertical axial optical coherence tomography (OCT) images, the foveal stereotaxic displacement was estimated through the total distance (TD, the distance from the foveal bottom to the inner edge of displaced central foveal) and horizontal distance (HD, projection of the TD in the retinal plane). The preoperative TD, HD, and other OCT- and OCT angiography (OCTA)-related indicators were obtained. The correlations between structural parameters and baseline and postoperative BCVA were evaluated through correlation and multiple linear regression analyses.ResultsIn patients with advanced EIFL stage, there was a significant increase in the HD, TD, baseline log of the minimum angle of resolution unit for BCVA, central macular thickness (CMT), acircularity index, and incidence of microcystic macular edema (MME; p < 0.05). Further, they showed a decreased foveal avascular zone (FAZ) area and perimeter (p < 0.001). HD, TD, CMT, MME, FAZ area, and FAZ perimeter were significantly correlated with the baseline and postoperative BCVA (p < 0.05). TD had the highest correlation indexic and was an individual predictor of the baseline and postoperative BCVA. Moreover, FD-300 and MME were individual predictors of postoperative BCVA.DiscussionStereoscopic foveal deviations significantly correlated with the baseline and postoperative visual acuity. TD may be used as an independent prognostic factor for BCVA.

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Section: Discussionmentioning

confidence: 99%

Total and horizontal distances of the foveal stereotaxic displacement can be prognostic indicators for patients with idiopathic epiretinal membrane

Zhang

Mao²,

Lao³

et al. 2023

Front. Med.

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“…Furthermore, various studies analyzed the feasibility of using iOCT as an alternative to dyes to stain the ERM and ILM. Even though recently developed dyes, such as trypan bluebased ones, are considered relatively safe for a short-time application [21][22][23], the toxicity of chromo-vitrectomy dyes, especially triamcinolone acetonide and indocyanine-green, still remains an important issue in macular surgery, and avoiding their use might reduce surgical time, retinal toxicity, and the rate of dye-related complications such as subretinal migration [24] or dye-related optic nerve atrophy [25]. In a study by Falkner-Radler and colleagues, stain-free peeling was feasible in one-third of cases with the application of iOCT [16].…”

Section: Clinical Applications In Vitreoretinal Surgery: Epiretinal M...mentioning

confidence: 99%

The State of Intraoperative OCT in Vitreoretinal Surgery: Recent Advances and Future Challenges

Ciarmatori,

Pellegrini,

Nasini

et al. 2023

Tomography

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Since its first introduction more than 30 years ago, optical coherence tomography (OCT) has revolutionized ophthalmology practice, providing a non-invasive in vivo cross-sectional view of the structures of the eye. Mostly employed in the clinical setting due to its tabletop configuration requiring an upright patient positioning, the recent advent of microscope-integrated systems now allows ophthalmologists to perform real-time intraoperative OCT (iOCT) during vitreoretinal surgical procedures. Numerous studies described various applications of this tool, such as offering surgeons feedback on tissue–instrument interactions in membrane peeling, providing structural images in macular hole repair, and showing residual subretinal fluid or perfluorocarbon in retinal detachment surgery. This narrative review aims at describing the state of the art of iOCT in vitreoretinal procedures, highlighting its modern role and applications in posterior segment surgery, its current limitations, and the future perspectives that may improve the widespread adoption of this technology.

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“…Indocyanine green (ICG) angiography and autofluorescence imaging could be performed with appropriate filter sets. ICG, trypan blue and other vital dyes have been used to stain structures in vitreoretinal operating microscope procedures [70, 71]. They could also be used in endoscopic chromovitrectomy.…”

Section: Emerging Technologymentioning

confidence: 99%

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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Vital Dyes in Vitreomacular Surgery

Cited by 15 publications

References 120 publications

Total and horizontal distances of the foveal stereotaxic displacement can be prognostic indicators for patients with idiopathic epiretinal membrane

Total and horizontal distances of the foveal stereotaxic displacement can be prognostic indicators for patients with idiopathic epiretinal membrane

The State of Intraoperative OCT in Vitreoretinal Surgery: Recent Advances and Future Challenges

Endoscopic vitreoretinal surgery: principles, applications and new directions

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