Which Eye Muscles are Involved in Focusing the Eye for Vision

Question

Which eye muscles are involved in focusing the eye for vision?
A) extrinsic eye muscles
B) intrinsic eye muscles
C) extraocular eye muscles
D) oculomotor muscles

Accepted Answer

The intrinsic eye muscles, specifically the ciliary muscle and the iris sphincter muscle, are responsible for focusing the eye for clear vision. The extrinsic eye muscles and extraocular eye muscles are responsible for moving the eye within the socket. The oculomotor muscles include several muscles, some of which are extrinsic eye muscles and some of which are intrinsic eye muscles. Therefore, B is the best choice as it specifically mentions the muscles involved in focusing the eye for vision.