LAUSR

operating table by observing the dilution of fluorescein over the plate.[7] Sharkawi et al. described accessing subconjunctival Supramid ripcord post-op and partially withdrawing it by an amount titrated to the IOP of the patient.[8] In our experience, Supramid is more forgiving than nylon or prolene stents. Supramid swells to occupy the entire lumen but the material is porous, allowing aqueous to seep through it. In contrast, nylon and prolene stents are impermeable, forcing aqueous to flow around them. A short segment of nylon or prolene stent may impart little extra resistance to flow except for where the tube is compressed within the scleral tunnel, at which point the stent can plug the lumen entirely, like a cork in a bottle. For this reason, we believe Supramid is best suited to our technique as it usually does not completely obstruct flow.