Koch LRI Axis Marker
Used to mark the cornea at 9.5 mm. To avoid error due to the torsional movement of the globe, fixed marks are located on the 90-Degrees meridian as reference points for marking in the upright position and referencing in the recumbent position. Corrects astigmatism of one and two diopters. Designed with an axis extension to easily align with the steepest meridian while working with a degrees gauge for precise alignment.