Latanoprost is a prostaglandin analogue widely used as a first-line medication for lowering intraocular pressure (IOP) in patients with open-angle glaucoma and ocular hypertension. It works by increasing the outflow of aqueous humor through the uveoscleral pathway, thereby reducing pressure within the eye. Administered once daily as topical eye drops, latanoprost is valued for its potent efficacy, favorable safety profile, and minimal systemic side effects.