What device is employed to keep the eyelids open during an ophthalmic procedure?

The eyelid speculum is the device specifically designed to keep the eyelids open during ophthalmic procedures. This instrument allows the surgeon clear access to the eye, which is crucial for carrying out delicate operations safely and effectively. By holding the eyelids open, the speculum minimizes blinking and protects the eye from potential trauma, ensuring that the surgical site remains unobstructed.

In contrast, the other instruments mentioned serve different purposes in surgical settings. A needle holder is used to securely grasp and manipulate surgical needles while suturing, calipers are utilized for measuring distances or sizes, and forceps are designed to grasp, hold, or manipulate tissue. None of these tools are intended to keep the eyelids open, demonstrating the specialized function of the eyelid speculum in eye surgeries.