On the optimal values of «target» intraocular pressure

   Current statistics show that glaucoma is the main cause of irreversible blindness worldwide. This fact generates continued interest in the search for new methods of rapid and accurate diagnosis of the disease. Presently, reducing the level of intra-ocular pressure (IOP) is the only proven strategy for slowing the progression of glaucomatous optic neuropathy. As such, achieving the so-called «target» pressure is the aim of any effective anti-glaucoma therapy. However, as practice shows, compensation of IOP does not always lead to stabilization of glaucoma progression. The concept of determining the «target» level of IOP implies a percentage decrease calculated by formulas, or a predetermined value, or a range of values. However, none of these strategies are considered as the leading one. The definition of «target pressure» is multifaceted and requires attention to many different factors. In addition, the understanding of how the level of IOP affects the progression of glaucoma is constantly evolving. In this review we summarize the data on the concept of «target» IOP, as well as on various concepts of achieving it.