<prompt> Normal intraocular pressure is -7 - 14 mm Hg2.1 - 6 mm Hg10 - 21mm Hg16 - 32 mm Hg  <response>: Ans. is c i.e., 10-21 mm Hg o The intraocular pressure IOP refers to the pressure exerted by intraocular fluids on the coats of the eyeball. The normal IOP varies between 10 and 21 mmHg. 