Flieringa Scleral Fixation Rings (Set of 11, 12mm to 22mm) are specialized surgical instruments used in ophthalmology for scleral fixation procedures, typically during intraocular lens (IOL) implantation or in cases where there is a need to secure a lens to the sclera (the white part of the eye). These rings help provide stable anchorage for the lens in situations where the natural support structure of the eye is compromised, such as in cases of lens dislocation or in patients who have had cataract surgery.