High School Earth Science/Geologic Time Scale - Lesson Summary. 1  The Earth is very old, and the study of Earth's past requires us to think about times that were millions or even billions of years ago. Scientists use the geologic time scale to illustrate the order in which events on Earth have happened.
Medical Definition of intraocular pressure. : the pressure within the eyeball that gives it a round firm shape and is caused by the aqueous humor and vitreous body.
Abstract: A new classification scheme for neovascularization of the iris (NVI) is. presented. This system designates the location of the new vessels by a letter. and the number of quadrants involved by a numeral. The presence of elevated. intraocular pressure (lOP) is denoted by a+ sign. It was found to be a reliable. method in the evaluation of the clinical course and results of treatment in. patients with NVI. [Key words: classification, glaucoma, iris neovascularization.] Ophthalmology 94:542-544, 1987.