How is the responsible slromal swelling pressure for corneal hydration?
Slromal Swelling Pressure
Stromal Swelling Pressure (SSP) is the pressure exerted by GAG (Glycosaminoglycans) of the stroma which acts like a sponge. Normally about 60 mm of Hg of pressure is exerted. The normal water content of cornea is 78 per cent. 'The state of relative dehydration is necessary for corneal transparency.