Thorpe Caliper

angled, graduated in inches & mm, permits measurements in deep areas, 4.5″ (11.4 cm)
Thorpe Caliper is a useful tool in ophthalmic procedures involving muscles of the eye. The caliper may be used to measure exact distances from muscle retraction in strabismus operations. The angled design allows for measurement in difficult to reach areas. The caliper measures in both inches and mm depending on preference.