What is Ocular Hypertension?
Dr. H Janhavi
Kalyan nagar, Bengaluru Apr 6, 2018
When intraocular pressure, the pressure inside the eye is higher than normal then it is termed as Ocular Hypertension. Eye pressure is measured in millimetres of mercury (mm Hg). Normal eye pressure ranges from 10-21 mm Hg and more than 21 mm Hg is considered as Ocular Hypertension. The pressure inside the eye is measured using an instrument called a tonometer.
It is caused due to the imbalance in the production and drainage of fluid in the eye. The channels that normally drain the fluid from inside the eye do not function properly and more fluid is continually being produced.
There are no such symptoms of Ocular Hypertension. It is very important to regularly examine your eye for any damage to the optic nerve from the high pressure.
- An ophthalmologist performs tests to measure intraocular pressure. Visual acuity is initially assessed. The cornea, anterior chamber, iris, and lens, are examined using the special microscope called a slit lamp.
- Gonioscopy is performed to check the drainage angle of your eye.
- Visual field testing to check peripheral vision by using an automated visual field machine.
- Pachymetry is checked by an ultrasound probe to determine the accuracy of intraocular pressure readings.
Treatment is initiated for those people who are at the greatest risk for developing glaucoma and for those with signs of optic nerve damage.
It can be treated with topical medicines.