When preserving our vision, early detection and management of eye diseases is critical. One such disease is glaucoma, often referred to as the "silent thief of sight" due to its gradual and painless progression. Regular eye exams play a crucial role in detecting glaucoma, as one aspect of an eye exam is measuring intraocular pressure (IOP), a key indicator for glaucoma. In this blog post, we will explore three commonly used methods for measuring IOP: the air puff (non-contact) tonometry, Goldmann tonometry, and the iCare tonometer. Understanding these techniques will shed light on how eye care professionals assess your eye health. Let's dive in!

Air Puff (Non-Contact) Tonometry:

The air puff tonometry is a non-invasive method used to estimate IOP. It involves a quick puff of air directed at the cornea to calculate the pressure inside the eye. The machine measures the force required to flatten the cornea and provides a pressure reading. This method is painless and does not require any eye drops or direct contact with the eye, however, for many patients, waiting for the air to puff can be a source of anxiety.

Benefits of Air Puff Tonometry: