Traditional and 1X magnification versions available. High Refractive Index glass provides total internal reflection even with fluid in contact with the mirrors. Total internal reflection means no light absorption or loss by a mirror coating resulting in a brighter, clearer image. High resolution image of the anterior chamber angle. Steam sterilizable. Available with small or large holding ring. Also available with ergonomic handle. Lens is easily detached from handle for cleaning and sterilization. Cleaning Method 3. Gonioscopic solution is not required to provide optical interface.