15(S)-Fluprostenol isopropyl ester is primarily used in ophthalmology as a key component in the treatment of glaucoma and ocular hypertension. It functions by reducing intraocular pressure, which helps in preventing optic nerve damage and preserving vision. The compound is often incorporated into topical eye drops due to its potent prostaglandin analog properties, which enhance the outflow of aqueous humor. Additionally, it is utilized in veterinary medicine for similar purposes, particularly in managing eye conditions in animals. Its efficacy and stability make it a valuable active ingredient in various pharmaceutical formulations aimed at improving ocular health.