Kratz Lens Manipulator CannulaDDP Elite USA Kratz Lens Manipulator Cannula is a frequently used tool in cataract IOL implantation procedures. The cannula is designed to adjust for the amount of viscoelastic fluid placed between the implant and the corneal epithelium. Please note that website images are often representative of the product family and may not conform to the exact specifications or features of the item you select. The final specifications will match the description of