We present a modified technique of viscosurgery in which viscoelastic material is combined with a vital dye (trypan blue) in complicated cases of severe PDR. Viscoelastic material is most useful for separating the posterior hyaloid–fibrovascular membrane complex from the retinal surface. At the same time, the vital dye allows for a topographic elevation map of these membranes owing to the variable color intensity of the underlying viscoelastic material, as mentioned in the “Surgical Technique” section of the text. The darker the shade, the greater the separation; this allows fast and safe dissection of the proliferations. In contrast, the lighter shades reflect a much smaller space between the retinal surface and the membranes, implying greater adhesion between them, so the dissection procedure must be performed with extreme care to avoid iatrogenic damage to the retina (Figure 2). Also, the clearly visible color of the viscoelastic material facilitates its complete removal, minimizing the risk of residue at the end of surgery, as established by Stenkula et al.2 In the technique we describe, the viscoelastic material is not actually used for dissecting the fibrovascular proliferations, as in conventional viscosurgery, but for defining their epicenters and the correct plane for fast and safe dissection. This, along with the enhanced visual advantage provided by its combination with the vital dye, makes it a useful procedure in complicated cases of PDR.