Intraocular pressure, also known as intraocular tension, refers to the pressure inside the eye that helps to maintain the shape of the eyeball. This pressure is regulated by the flow of aqueous humor, a fluid that circulates within the eye. In some cases, elevated intraocular pressure can lead to glaucoma, a condition that can cause vision loss if left untreated. Other terms that may be used to describe intraocular pressure include ocular tension, intraocular stress, and eye pressure. It's important to have regular eye exams to monitor intraocular pressure and detect any potential issues early on.