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It is to test pressure inside the eye.
critical reading
I thing glaucoma test? I could be wrong but My Grandma has glaucoma and she said something about "eye fluid pressure"
The pressure in the eye of a hurricane is very low, among the lowest sea-level pressures on earth.
By "pressure behind an eye," I'm going to assume that what is meant is pressure inside the eye. Eye pressure (intraocular pressure) is controlled by a watery fluid called aqueous humour, which fills the front part of the eye. Any condition that affects the drainage or production of the eye fluids can cause an increase in eye pressure. In addition, brain disorders and hemorrhagic eye injuries can also cause elevation of eye pressures and associated pain. Any increase in ocular pressure deserves assessment by an ophthalmologist.
They will do a pressure test, which puffs air into your eye, which tests for glaucoma. They will also measure your eye, test for color blindness, and astigmatism. Other than that they will just test your vision, long range and short range.
It is called Tonometry. This test determines the rigidity of the surface of the eye. It is used to detect glaucoma. Also, a high pressure could damage the optic nerve and cause blindness.
It may be called as Ocular hypertension or Glaucoma
V80.1 is a screening test for glaucoma. Glaucoma is increased pressure in the eye.
Tonometry is the test that measures intraocular pressure.
As millibars are a reflection of atmospheric pressure, a low millibar reading would occur in the eye of a hurricane or tropical storm. The lowest recorded millibar reading was 867.93 in the eye of Typhoon Tip (1979)
The center of a tornado is often referred to at its eye, though a true eye only forms in tropical cyclones (e.g. hurricanes). If such an eye-like structure is detected it is called the weak echo region.the center of a tornado is called the eye.