The intraocular pressure (IOP) always refers to eyestrain. Therefore, it can be known whether or not the state of it may affect the vision of the eye. The appropriate and most reliable diagnostic technique for measuring IOP is with a tonometer whenever the patient visits an ophthalmologist's office.

What is ocular tension?

Intraocular pressure is the force that liquids inside the eye make, formed by vitreous humor and aqueous humor. Its characteristics serve largely to maintain the spherical shape of the eye.

There must, therefore, be such pressure, and for this, its interior must be filled with the transparent fluids that we have mentioned.

The aqueous humor specifically would be the most important for eye pressure. It is present in the anterior area of ​​the eyeball (from the cornea to the lens). It consists mainly of water, rich in oxygen and other essential nutrients to cover the blood supplies needed by other parts of the eye.

If we compare the eye with a balloon, the intraocular tension would be the force that the air exerts on the balloon, only that it would not be filled with air. 

How is eye strain measured?

Previously, what patients should know is that it has nothing to do with blood pressure with intraocular pressure. The first is the pressure exerted by blood on the walls of the arteries when the heart beats and is at rest.

Eye strain measures the formation and elimination of aqueous humor. That is, a person can have high blood pressure and normal eye pressure, or vice versa. However, the average value of intraocular pressure (IOP) is usually between 10mmHg and 20mmHg. This diagnostic test is always performed with a tonometer.

Normally intraocular pressure may vary 24 hours a day. Therefore, it is important that an ophthalmologist measures these values ​​that usually fluctuate for different reasons to have better control.

High eye strain

When it is greater than 21mmHG, ocular hypertension could be the leading risk factor for developing glaucoma. An ocular pathology that has no visible symptoms and progressively affects the optic nerve. If it is not treated early by the eye surgery hospitals, it can cause serious vision loss.

However, not all high eye tensions involve the appearance of glaucoma. Nor can the different types of glaucoma that exist be manifested with high intraocular pressures. This is the case, for example, of normotensive glaucoma. The ocular tension of these patients is normal, but they present damage to the optic nerve.

Causes of high eye strain

If the patient is at high risk of suffering from glaucoma, to confirm the diagnosis, it is necessary to go to a complete eye exam annually from the age of 35. There are different reasons that could pose a risk of having high intraocular pressure:

·        Family history of ocular hypertension.

·        Having a family history with glaucoma.

·        Having high myopia or pathological myopia.

·        Age.

·        Having diabetes mellitus

·        Air tonometer to measure eye pressure

As we have already mentioned to measure the ocular tension or IOP, the eye treatment hospitals in Delhiuses a tonometer that makes force on the Air tonometer to see eye strain ocular surface to check if any structure of the eye is deformed such as the cornea (the transparent part of the eye) or the sclera (what white of the eye).