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:	Jeannette Curtis	Last Updated: April 8, 2008
Medical Review:	Kathleen Romito, MD - Family Medicine Christopher J. Rudnisky, MD, FRCSC - Ophthalmology
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