tonometry
Tonometry is the measurement of the internal pressure of the eyeball , known as intraocular pressure .
Variations in intraocular pressure are due to the aqueous humor, what is a liquid that exists between the iris and the cornea, consisting of water and salts , which are continually produced and eliminated by the body. It is the amount of this liquid that measures the values of intraocular pressure.
If there is an imbalance in the aqueous humor production/elimination mechanism intraocular pressure go r varies , generally increasing.
Tonometry should be performed regularly for all patients, but especially for patients over 50 years of age , patients with a family history of high intraocular pressure and glaucoma and patients with other associated ocular pathologies .
Higher and continuously high intraocular pressure values (around the maximum limit of 21mmHg) can cause damage to the optic nerve, namely glaucoma.
As such, prophylactic measurement of intraocular pressure is extremely important for the prevention and detection of ocular pathologies.
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