Laser sclerostomy can be performed in a less invasive manner than standard filtering surgery. Recent studies have explored the use of laser energy of varying wavelengths, properties, and tissue interaction to create thermal sclerostomies. Several methods deliver laser energy by mirrored contact lenses to the internal face of the filtration angle or by fiberoptic cables for ab interno or ab externo sclerostomy formation. Certain laser techniques can be performed outside the standard operating room, in a clinic or minor surgery room. This article reviews the various laser sclerostomy techniques currently being investigated.