Answer
The extrinsic muscles of the eyes that are the prime movers in convergence are the **medial rectus muscles**. Convergence is the coordinated movement of both eyes toward the midline (nose), allowing the eyes to focus on a near object. When you look at something up close, such as reading a book, the medial rectus muscles contract to bring both eyes inward, ensuring that they are both aimed at the same point of convergence. This binocular alignment helps with depth perception and clear near vision.
Work Step by Step
The extrinsic muscles of the eyes that are the prime movers in convergence are the **medial rectus muscles**. Convergence is the coordinated movement of both eyes toward the midline (nose), allowing the eyes to focus on a near object. When you look at something up close, such as reading a book, the medial rectus muscles contract to bring both eyes inward, ensuring that they are both aimed at the same point of convergence. This binocular alignment helps with depth perception and clear near vision.
