Thornton Model : AA 2213 A

Axis marker used with mendez degree gauge to mark the axis in which corneal incisions for correction of astigmatism are to be made

Optic zone marker with extra fine cross hairs. size 5.50 mm dia

Optic zone marker with centering pin very low profile.size 4 mm dia

Marking tunnel for future ring position with initial lines for incisions. 40 degree angled to handle size 2.0 mm ring height