When passed underneath the conjunctiva to pull a tendon into view, the blades of forceps should not allow the tendon to slip from their grasp. Most of them are not dependable in this respect. The instrument here shown is short, stubby and strong and possesses good teeth. It will hold the tendon securely until it is released by the operator. It is useful in general eye surgery in which there is need for reliable forceps. It is a modification of Stevens' tenotomy forceps.
The only fault of Prince's advancement forceps is that this instrument is not strong enough, and that the tendons frequently slip from its grasp at a critical moment. I have modified it, as shown in the picture, so that it is much stronger and more reliable. It is generally built on heavier lines and has strong grasping teeth and a reliable catch.