Eye Pressure Testing
Our eyes constantly make a fluid called aqueous humor. As new aqueous flows into your eye, the same amount should drain out through a tiny drainage area. This process keeps pressure in your eye (called intraocular pressure or IOP) stable. But if the drain is not working properly, fluid builds up. Pressure inside the eye rises, damaging the optics nerve. This is often how glaucoma develops.
As part of a complete eye exam, our Optometrist will measure your eye pressure. This pressure check is called tonometry.
In the past, you may have had an eye pressure test using a puff of air. Now most ophthalmologists use a more accurate device that measures pressure by direct contact with the eye.