Fig. 36. A. With fine-wire needles, the surgeon cannot lift the tip of the needle free from the sclera by trying to elevate it by rotating the needle holder. Rotating the needle holder will cause the shaft of the needle to bend. This bending is dangerous because the tip of the needle is prevented from emerging from the intrascleral bite when the needle is bent. Withdrawing the needle from the sclera will cause the tip to be directed posteriorly, and the globe may be penetrated. B. Diagram of process that can cause the needle to bend.