Illustrate about the Intra-ocular pressure
It is the pressure maintained inside the eye above the atmospheric pressure. It is higher than fluid pressure in any other tissue (2-3 mm of Hg) or even cerebropenal fluid (7 mm of Hg). Its normal value, as you know, is 15-20 mm of Hg. This higher intra-ocular pressure is necessary for maintenance of the optical properties of the eye