Which of the Following Occur as an Object is Moved

Question

Which of the following occur as an object is moved closer to the eyes?
A) Mydriasis and miosis
B) Accommodation and convergence
C) Muscarinic and alpha1 activation
D) Contraction of the levator palpebrae superioris and relaxation of the orbicularis oculi

Accepted Answer

Accommodation and convergence occur as an object is moved closer to the eyes. Accommodation is the process of adjusting the shape of the lens to focus on the object and convergence is the process of turning the eyes inward to maintain binocular vision. Mydriasis and miosis refer to the dilation and constriction of the pupils, which may occur in response to light or other stimuli. Muscarinic and alpha1 activation refer to the activation of specific receptors in the body that may have various effects on different tissues. Contraction of the levator palpebrae superioris and relaxation of the orbicularis oculi are involved in opening and closing the eyelids, but are not directly related to the process of focusing on near objects.