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Most cases of glaucoma are due to increased eye pressure
Most cases of glaucoma are due to increased eye pressure. Inside the eye there is a dynamic balance of fluid called aqueous humor. The aqueous humor is continuously produced by a structure called the ciliary body, and drains the same rate from a sewerage network, located in the periphery of the iris and called 'Angle'.
If for any reason the production of the outflow of aqueous humor is increased or decreased, the excess increases the pressure of the eye and damages the optic nerve. The damage caused by the increased intra-ocular pressure on the optic nerve is irreversible.
The increase of pressure of the aqueous humor (blue) leads to pressure of the optic nerve and gradual necrosis of its nerve cells.
The increase of pressure of the aqueous humor (blue) leads to pressure of the optic nerve and gradual necrosis of its nerve cells.
The pressure of the eye has nothing to do with blood pressure, which we measure at our hand. A person with hypertension may have low intraocular pressure and vice versa.