Vital dyes are used by vitreoretinal specialists to visualize transparent preretinal tissues, to enhance identification and to remove transparent anatomical layers during vitreoretinal surgery, but the dyes can result in irreversible acute toxicity in some cases, according to a review article in Ophthalmic Surgery Lasers & Imaging Retina.
Vitreoretinal specialists most commonly use indocyanine green (ICG), triamcinolone acetonide, trypan blue and brilliant blue G (BBG) as chromovitrectomy dyes to help visualize transparent preretinal tissues such as the epiretinal membrane and vitreous
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