Diamond blades have been used extensively in cataract surgery but their routine use in glaucoma surgery has been limited owing to the lack of controlled sharpness. The SuperCrescent knife is an ultrathin (100 μm) diamond blade that is an innovative modification of conventional blade design. Its pentium faceted trapezoidal design along with the square front surface area affords better control during dissection and has been used with success in both traditional trabeculectomies and nonpenetrating glaucoma procedures.