Ophthalmic Surgery Dye segmentation by Type hinges on the distinct chromophores surgeons rely on to enhance intraocular contrast. Trypan blue 0.06 % dominates anterior-segment procedures, binding to damaged corneal endothelium and residual lens cortex; its low cost and proven safety profile make it the volume engine of the segment, accounting for just over half of global dye sales. Brilliant blue G 0.025 %, with its peak absorption at 580โ590 nm, is preferred for internal limiting membrane peeling in macular hole surgery, delivering clearer retinal visualization and lower retinotoxic risk, hence commanding a price premium that lifts value despite smaller unit demand. Indocyanine green, once standard, has ceded share because of dose-dependent retinal ganglion cell toxicity, yet remains indispensable when deep choroidal staining is required, preserving a high-value but low-volume niche. Finally, off-label cocktails and emerging biodegradable nanocolloids form the Others bucket, collectively illustrating how incremental innovation continues to stretch the market taxonomy without threatening incumbent shares.