Lacoma PF Eye Drop BAK Free contains latanoprost 0.005% w/v, a prostaglandin analog indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. Latanoprost works by increasing the outflow of aqueous humor through the uveoscleral pathway, thereby lowering IOP and reducing the risk of optic nerve damage and visual field loss. This preservative-free formulation is specifically designed to minimize ocular surface irritation and is suitable for patients sensitive to benzalkonium chloride (BAK) or other preservatives commonly found in ophthalmic solutions. Lacoma PF Eye Drop BAK Free is administered once daily in the affected eye(s), preferably in the evening, to achieve optimal therapeutic effect. Common adverse reactions may include conjunctival hyperemia, eye irritation, and eyelash changes such as increased length or pigmentation. Patients should be advised to avoid contamination of the dropper tip and to discontinue use if signs of hypersensitivity or severe ocular irritation occur. Regular monitoring of intraocular pressure and ocular health is recommended during treatment. Lacoma PF Eye Drop BAK Free offers an effective and well-tolerated option for long-term management of glaucoma and ocular hypertension, enhancing patient compliance through its preservative-free formulation.