Which instrument is used to locate and grasp eye muscles?

• A. Muscle Hook
• B. Tonometer
• C. Retinoscope
• D. Scleral Knife

Answer: (A)

Locating and grasping the eye muscles is done with a muscle hook. This small, curved instrument is specifically designed for gently hooking under an extraocular muscle to isolate and lift it so its location and tendon insertion can be identified and controlled during procedures like strabismus surgery. The other tools have different purposes: a tonometer measures intraocular pressure, a retinoscope assesses refractive error, and a scleral knife is used to make incisions in the sclera, not to grasp muscles.