Visual Field Defects After Macular Hole Surgery With Indocyanine Green–assisted Internal Limiting Membrane Peeling

Tsuiki, Eiko; Fujikawa, Azusa; Miyamura, Noritake; Yamada, Koki; Mishima, Kentaro; Kitaoka, Takashi

doi:10.1016/j.ajo.2006.10.051

Cited by 55 publications

(39 citation statements)

References 6 publications

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“…27,28,30 However, in our own experiments using AFM in fresh human tissue, an increase in stiffness was seen also for ICG without subsequent illumination maybe because the specimens were not kept in darkness as described for Wollensak's experimental setting. 27 It is widely accepted that the potential toxic effects of ICG 10,11,31,32 as described clinically are very likely related to photosensitizing properties of ICG as described above and the decomposition products of the ICG molecule after illumination. 7,8,33 Importantly, other additional relevant tissue-dye interactions seem to have a role as a causative effect for the increase in tissue stiffness, as increased rigidity was also seen for BBG in our experiments.…”

Section: Basement Membrane Rigidity C Haritoglou Et Almentioning

confidence: 99%

“…ICG became a subject of debate because of its potential toxicity, most likely related to its chemical instability and a photosensitizing effect that has been demonstrated experimentally, [6][7][8][9] which may lead to functional deficits in clinical practice. 10,11 A few years later, the triarylmethane dye brilliant blue became commercially available. On the basis of clinical and experimental studies published so far, brilliant blue seems to provide an improved safety profile compared with ICG.…”

Section: Introductionmentioning

confidence: 99%

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Vital dyes increase the rigidity of the internal limiting membrane

Haritoglou

Mauell

Benoit

et al. 2013

Eye

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Purpose To assess the stiffness of the natural human internal limiting membrane (ILM) and evaluate potential changes of the mechanical properties following staining with brilliant blue (BB) and indocyanine green (ICG). Methods Unstained ILM specimens were obtained during ophthalmic surgical procedures. After removal, the specimens were dissected into five parts. Two fragments were stained with BB and ICG, respectively, for 1 min, another two specimens were stained similarly followed by additional subsequent illumination using a standard light source (PENTA LUX x 50, Ophthalmologische Systeme GmbH Fritz Ruck). The fifth part served as an untreated control. All specimens were then analyzed using atomic force microscopy (AFM) in contact mode with a scan rate of 0.6 Hz. Two scan regions of 10 Â 10 mm were chosen and stiffness was determined by using AFM in a force spectroscopy mode. The force curves were plotted with a data rate of 5000 Hz. In all specimens both the retinal side and vitreal side were analyzed.

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Section: Basement Membrane Rigidity C Haritoglou Et Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vital dyes increase the rigidity of the internal limiting membrane

Haritoglou

Mauell

Benoit

et al. 2013

Eye

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“…TA may enhance the effect of ILM removal by not only helping absorption of edema but also directly protect the retinal neurons by down-regulating the expression of such proteins during or just after surgery. The visual field defects reported after ICG-assisted ILM peeling during macular hole surgery have been suggested to be caused by the retinotoxicity of ICG [16][17][18][19] . It is possible that the effect of ILM peeling is offset by the retinotoxicity of ICG.…”

Section: Discussionmentioning

confidence: 99%

Triamcinolone-Assisted Removal of Internal Limiting Membrane Enhances the Effect of Vitrectomy for Diabetic Macular Edema

et al. 2009

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Purpose: To evaluate the efficacy of internal limiting membrane (ILM) peeling during vitrectomy to treat diabetic macular edema (DME). Methods: In this nonrandomized study, we retrospectively analyzed the medical charts of 107 eyes that had undergone three-port vitrectomy to treat DME. The ILM was peeled in 65 eyes and not peeled in 42 eyes (ILM ON group). Indocyanine green (ICG) was used on 36 eyes (ICG group) and triamcinolone acetonide (TA) on 29 eyes (TA group) to make the ILM more visible. Results: In all groups, the mean foveal thickness was significantly decreased after surgery. Visual acuity (VA) improved gradually after the surgery and was significantly better than the preoperative VA at 6 months in the ICG group and at 3 months in the TA group. Compared with the ILM ON group eyes, the eyes in the TA group had significantly better improvement of VA. Conclusion: TA-assisted ILM peeling may improve the VA outcome to treat DME.

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“…Our finding that trypan blue inhibits proliferation and enhances apoptosis to a significantly lesser degree than ICG argues for its greater safety. Nevertheless, as with ICG, there is little consensus about its effects [10,11,12,13,14,15,16,17]. …”

Section: Discussionmentioning

confidence: 99%

“…However, complications associated with its use over the past decade have called its safety into question. ICG was found to be associated with the risk of retinal damage [6,7,8,9], atrophy of the retinal pigment epithelium (RPE) [10], damage to the photoreceptors and RPE cells [11,12], lower visual function outcome [13,14,15,16], loss of epiretinal cellular integrity [17], cellular toxicity [18,19,20], and other harmful effects. Recently, research groups also reported that ICG may persist in the ocular cavity up to 6 weeks after its application in surgery [21,22].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Vital Dyes on Retinal Pigment Epithelium Cells in Oxidative Stress

et al. 2014

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Purpose: To determine the effect of the most commonly used vital dyes in vitrectomy [trypan blue at 0.15% concentration and indocyanine green (ICG) at 0.5% concentration] on the viability of human retinal pigment epithelium (RPE) cell lines (ARPE-19) exposed to oxidative stress. Methods: ARPE-19 cells unexposed or exposed to oxidative stress (hypoxic chamber) were treated for 1 min with one of the dyes. RPE proliferation was measured by ³H-thymidine incorporation, adhesion by ability to adhere to fibronectin, and safety by annexin V staining. Results: Proliferation: The dyes affected the proliferation of RPE cells differently under non-hypoxic and hypoxic conditions (p = 0.001). In non-hypoxic conditions, there was no statistically significant difference between the proliferation of the treated (both dyes) and untreated RPE cells (p = 0.279). Under hypoxia, both dyes significantly suppressed proliferation, more so with ICG (p = 0.001). Adhesion: The dyes affected adhesion differently under non-hypoxic and hypoxic conditions (p = 0.04). In non-hypoxic conditions, both increased the adhesive properties of RPE cells to fibronectin, ICG more than trypan blue (p = 0.001). Under hypoxia, both dyes suppressed adhesion, with no statistically significant difference between treated and non-treated RPE cells. Apoptosis: Both dyes increased early apoptosis of RPE cells compared with no treatment (p = 0.001), ICG more than trypan blue. Hypoxia increased the apoptosis of both dyes compared to non-hypoxic conditions (p = 0.02). Conclusions: In hypoxic conditions, both dyes showed an inhibition of RPE adhesion to fibronectin and proliferation capacity and an increase in early apoptosis compared with non-hypoxic conditions. Apoptosis was greater in ICG-treated RPE cells than in trypan blue-treated cells.

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Visual Field Defects After Macular Hole Surgery With Indocyanine Green–assisted Internal Limiting Membrane Peeling

Cited by 55 publications

References 6 publications

Vital dyes increase the rigidity of the internal limiting membrane

Vital dyes increase the rigidity of the internal limiting membrane

Triamcinolone-Assisted Removal of Internal Limiting Membrane Enhances the Effect of Vitrectomy for Diabetic Macular Edema

The Effects of Vital Dyes on Retinal Pigment Epithelium Cells in Oxidative Stress

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