If a patient with presbyopia uses eye drops that paralyze the ciliary muscle, which consequence is most likely regarding their ability to focus?

💡 Explanation

Paralyzing the ciliary muscle impairs its ability to contract and relax, preventing the lens from changing shape to focus on near or far objects. Because accommodation relies on ciliary muscle function, paralysis causes loss of focus at all distances, therefore C is correct, rather than improved vision at certain distances.

• Why does intense exercise cause muscle fatigue faster in fast-twitch muscle fibers compared to slow-twitch fibers?
• If an asthma patient inhales pollen, which consequence follows regarding airway smooth muscle?
• A food manufacturer uses a novel bitter-masking compound which prevents activation of the TAS2R38 receptor. If a supertaster consumes a product with this compound, which consequence follows?
• Which long-term consequence occurs when periosteum tearing continues?
• An elderly patient experiences persistent joint pain due to chronic inflammation. If their body struggles to resolve the inflammatory response effectively, which consequence is most likely?
• Why does antibody-dependent cell-mediated cytotoxicity (ADCC) eliminate infected cells, rather than non-infected neighboring cells during a viral infection?