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What is a non-contact tonometry?

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This test helps diagnose glaucoma. The doctor will use a tool called a tonometer that blows a tiny puff of air, measuring eye pressure indirectly by the eye's resistance to the puff.

Applanation instruments can also measure pressure. They are the most accurate, but you'll need local anesthetic.

From: A Glossary of Eye Tests and Exams WebMD Medical Reference

SOURCES:

Yanoff, M; Duker, J. , Mosby, 2008. Ophthalmology

MedlinePlus: "Standard Ophtalmic Exam."

National Eye Institute: "What is a comprehensive dilated eye exam?"

 

Reviewed by Alan Kozarsky on August 9, 2018

SOURCES:

Yanoff, M; Duker, J. , Mosby, 2008. Ophthalmology

MedlinePlus: "Standard Ophtalmic Exam."

National Eye Institute: "What is a comprehensive dilated eye exam?"

 

Reviewed by Alan Kozarsky on August 9, 2018

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