What is ocular tension or intraocular pressure?
When we talk about eye strain we mean the pressure exerted by the liquids found inside our eyeball, especially the aqueous humor, on the solid structures of the eye, such as the lens, the cornea or the iris.
La Intraocular pressure normal, which is measured in millimeters of mercury or mmHg, should be between 11 and 21 mmHg, si after two consecutive measurements this value is exceeded, it is considered that the patient may experience high eye strain. Because this value does not stay the same throughout the day, eye pressure may need to be measured multiple times before determining that it is indeed high.
Eye strain it is measured very simply thanks to an instrument called a tonometer which, through a quick and completely painless examination, determines the resistance of the cornea to pressure. If the result indicates that the eye pressure is high, the specialist may perform other tests to make a more accurate diagnosis.
Causes of high eye strain
La high eye strain normally occurs when it exists un imbalance in the eye's ability to drain aqueous humormaking fluid builds up inside the eye and increasing eye pressure. As well can be presented in patients who produce excess aqueous humor, hindering the process of draining it.
The causes of this condition are not clear, however there are some risk factor's that can increase our possibility suffering from high eye strain and, therefore, of a possible glaucoma. These are:
- Have some immediate family member with ocular hypertension or glaucoma.
- Suffer diabetes, Hypertension high or circulatory problems.
- Having more than 40 years.
- To have suffered trauma or injury to the eyes.
- Long-term use of certain medicationssuch as steroids and corticosteroids.
- Additionally, this condition is more common in people of Latin and African American origin.
Symptoms of high eye strain
La early stage high eye strain is normally is asymptomatic, this means that we can suffer it without even noticing it. Si this condition advances may cause damage to the nerves of the eyeball, leading to blindness if it is not attended in time.
For this reason it is very important that if we present one or several risk factor's or if we are over 40 years old, let's go periodically to an ophthalmologist to measure our eye pressure.
Only when this pathology is in an advanced phase can some of these occur. symptom:
High eye strain and glaucoma
Although there are different types of glaucoma y not all are directly related to elevated eye pressure, in most cases glaucoma is the consequence of high eye strain that remains long without treatment.
With the passage of time the high eye pressure is causing damage on the delicate optic nerves, when this damage is irreparable then the patient suffers from glaucoma.
Addressing this condition in its initial stage is very important, high eye pressure can be controlled with proper treatment, thus avoiding irreversible damage leading to blindness. It is also possible to control an early stage glaucoma with the appropriate treatment, but when the patient's vision is already compromised then it will be impossible to recover it.
How to lower high eye pressure
El treatment for high eye strain must be determined and supervised by a ophthalmologistWho after a scan He will decide whether it is necessary to simply monitor the pressure on a frequent basis or whether treatment is warranted.
Main methods to lower high eye strain are:
- Instillation of topical drops tend to be the most widely used alternative to lower eye strain.
- Laser treatment o laser trabeculoplasty to drain the accumulated liquid and lower high eye strain.
- La glaucoma filtering surgery to create drain hole, this in case of patients who present some type of contraindication or who require another measure to maintain the pressure at an adequate level.
Prevention of high eye strain
From the age of 40, our risk of suffering from various visual problems increases, such as Presbyopia or tired eyesight and also glaucoma. The ophthalmological reviews periodic are the only way to guarantee our eye and visual health, Especially against conditions without symptoms initially, as la high eye strain or glaucoma itself.
Un timely diagnosis It can prevent us from being another victim of this disease, considered the second cause of blindness in western countries.