Designed specifically for Selective Laser Trabeculoplasty. 1.0x magnification maintains laser spot size for accurate laser energy delivery. Tilted anterior lens surface corrects astigmatism to maintain circular laser beam profile and give sharp images for examination. Suitable for standard laser trabeculoplasty. Large 63° mirror yields bright image for angle photography. High contrast reference bar embedded into the contact portion of the SLT lens and provides easy estimation of a 45° section of the trabecular meshwork. Imaged at width of 5mm, the reference bar can also be used to estimate the size of the anterior chamber angle structures. Particularly useful as an aid in laser spot placement of sub-threshold laser procedures. Designed to image approximately 5mm in width, the indicator bar provides a handy reference measure for artifacts in the anterior chamber angle. Available with the Ocular Securefit® flange for increased stability.