5 doctors weighed in:

How is the pressure in my eye measured?

5 doctors weighed in
Dr. Robert Chang
Ophthalmology
2 doctors agree

In brief: Various methods

Most commonly with air puff pneumotonometry (often optometrists) or blue light applanation tonometry (ophthalmologists) where the known force indenting the cornea is canceled by the intraocular pressure pushing back which equals the estimated pressure inside the eye (indirect measurement).
Other methods such as rebound tonometry, etc. Exist.

In brief: Various methods

Most commonly with air puff pneumotonometry (often optometrists) or blue light applanation tonometry (ophthalmologists) where the known force indenting the cornea is canceled by the intraocular pressure pushing back which equals the estimated pressure inside the eye (indirect measurement).
Other methods such as rebound tonometry, etc. Exist.
Dr. Robert Chang
Dr. Robert Chang
Thank
Dr. Theodore Wu
Ophthalmology
1 doctor agrees

In brief: Pressure

The most common method, called applanation, uses a tonometer to very lightly contact the surface tear film-- the surface tension of the eye is converted to an internal eye pressure measurement with a clever math equation.

In brief: Pressure

The most common method, called applanation, uses a tonometer to very lightly contact the surface tear film-- the surface tension of the eye is converted to an internal eye pressure measurement with a clever math equation.
Dr. Theodore Wu
Dr. Theodore Wu
Thank
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