Which of the following drugs are typically administered preoperatively for cataract surgery?

Mydriatics and dilators are commonly administered preoperatively for cataract surgery because their primary function is to enlarge the pupil, thereby providing the surgeon with better access to the lens during the procedure. Having a dilated pupil allows for improved visualization and facilitates the surgical process.

For cataract surgery, achieving optimal pupil dilation is crucial, as it helps reduce the risk of complications and allows for a more thorough and efficient surgery. The use of these medications is aimed specifically at preparing the eye for the operation, ensuring that the surgical team has the best conditions to work under during the procedure.

Other medications mentioned in the options serve different purposes that are not aligned with the immediate needs prior to cataract surgery. For instance, stool softeners and analgesics are more related to general comfort and bowel management rather than eye surgery preparation. Antibiotic ointments and anti-inflammatories may be used in other contexts but are not typically indicated just before cataract surgery. Antiemetics and sedatives may aid in patient comfort and anxiety but do not directly assist in the surgical aspects of pupil management necessary for cataract removal.