Final answer:
Cyclopentolate is an anticholinergic agent that causes dilation of the pupil and paralysis of the ciliary muscle. The student's question contains one incorrect statement, which is that Cyclopentolate leads to a decreased intraocular pressure. Its primary actions do not include decreasing intraocular pressure or increasing tear production.Hence, the correct options are 3 and 4.
Step-by-step explanation:
The student is asking about the mechanism of action (MOA) of Cyclopentolate. Cyclopentolate is an anticholinergic drug used to produce mydriasis (dilation of the pupil) and cycloplegia (paralysis of the ciliary muscle) for ophthalmic procedures. The mechanisms of Cyclopentolate include: dilation of the pupil by blocking the responses of the sphincter muscles of the iris to cholinergic stimulation, and paralysis of ciliary muscle by blocking the accommodation reflex.
Option 3) 'Decreased intraocular pressure' is incorrect when discussing Cyclopentolate. The medication is not primarily used to manage intraocular pressure; that is a characteristic effect of other drugs like Pilocarpine, which is a muscarinic agonist. Pilocarpine can decrease intraocular pressure by enhancing the drainage of aqueous humor, but this is not the case with Cyclopentolate. Lastly, Cyclopentolate does not typically cause an increase in tear production; hence, this also is an incorrect statement about its effects.