Optical Screwdriver

screwdriver
A tool with a flattened, cross-shaped, or star-shaped tip that fits into the head of a screw to turn it
a cocktail made with vodka and orange juice
A cocktail made from vodka and orange juice
a hand tool for driving screws; has a tip that fits into the head of a screw
A screwdriver is a tool for driving screws and rotating other machine elements with the mating drive system. The screwdriver is made up of a head or tip, which engages with a screw, a mechanism to apply torque by rotating the tip, and some way to position and support the screwdriver.

optical
Of or relating to sight, esp. in relation to the physical action of light
Devised on the principles of optics
ocular: relating to or using sight; "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation"
ocular: of or relating to or resembling the eye; "ocular muscles"; "an ocular organ"; "ocular diseases"; "the optic (or optical) axis of the eye"; "an ocular spot is a pigmented organ or part believed to be sensitive to light"
of or relating to or involving light or optics; "optical supplies"
Constructed to assist sight