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A 32-year-old member asked:

Can you use tonometry test to check for an astigmatism?

2 doctor answers3 doctors weighed in
Dr. Allen Seely
General Practice 31 years experience
Tonometry=glaucoma: Tonometry checks the eye pressure looking for a disease called glaucoma (high pressure). To check: the eye is 'numbed' with drops and device attached to 'slit lamp' touches the cornea. Also a pencil-like device touches the eye and instantly records eye pressure. Another method 'uses a puff of air' . Astigmatism can be found on a standard eye exam/refraction test or 'astigmatism mirror chart'.
Dr. Niraj Patel
Ophthalmology 27 years experience
Astigmatism: Not usually. If you are in the field, you can look at the mires of tonometry to see if there is astigmatism, but there are better methods including refraction and topography that can be helpful in checking for astigmatism.

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Similar questions

A 36-year-old member asked:

Is it possible to use a 'tonometry test' to check for an astigmatism?

1 doctor answer1 doctor weighed in
Dr. Tim Conrad
Ophthalmology 34 years experience
No: A tonometry test determines the pressure in your eye. Astigmatism is most commonly determined with a refraction, the test to find your glasses prescription.

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Last updated May 28, 2014
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