Fig. 12. A. A surgical instrument held like a pencil, resting in the crotch between the thumb and the forefinger. No surgical instruments are intended to be held in this manner. B. A longer surgical instrument held resting against the first metacarpophalangeal joint of the first finger, with the thumb and the first finger encircling the handle. This position allows for rotation of the instrument between the fingertips or by flexing the fingers or wrist. C. The surgical instrument is held between the thumb and fingertips of the second and third digits. This position allows for a more perpendicular positioning of the instrument on the eye.