What is the pupil? USMLE Step 1 Review: Miosis vs Mydriasis
2:15
Pupillary Nerve Control - Miosis(constriction) & Mydriasis(Dilation)
1:14
Mydriasis miosis and ptosis
1:35
Pharmacology of Mydriatics | Active and Passive Mydriasis
2:47
Causes of mydriasis | Ocular signs
Mydriasis is the dilation of the pupil, usually having a non-physiological cause, or sometimes a physiological pupillary response. Non-physiological causes of mydriasis include disease, trauma, or the use of drugs.