Tonometry

Glaucoma Screening Test

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Having a sore on your eye or an eye infection. This increases your risk of an eye injury during the test.
• Being extremely nearsighted, having an irregularly shaped cornea, or having had major eye surgery in the past.
• Blinking or squeezing your eyes shut during the test.
• Having had laser refractive surgery (such as LASIK).

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Author:	Douglas Dana Jan Nissl, RN, BS	Last Updated: August 22, 2006
Medical Review:	Adam Husney, MD - Family Medicine Ian MacDonald, MDCM, FRCSC - Ophthalmology
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