Tonometry: How To Prepare
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How To Prepare
Tell your doctor if you or someone in your family has glaucoma or risk factors for glaucoma.
If you wear contact lenses, remove them before the test. Do not put your contacts back in for 2 hours after the test. Bring your eyeglasses to wear after the test until you can wear your contact lenses.
Loosen or remove any tight clothing around your neck. Pressure on the veins in your neck can increase the pressure inside your eyes. Stay relaxed.
Numbing eyedrops are used for the methods that use a tonometer to touch your eye. You will not feel the tonometer touch your eye. No numbing eyedrops are needed when an air-puff (noncontact) tonometer is used.
Results from tonometry are most accurate when you:
- Do not drink more than
of fluid 4 hours before the test. - Do not drink alcohol for 12 hours before the test.
- Do not smoke marijuana for 24 hours before the test.
| Last updated: | April 08, 2008 |
|---|---|
| Author: | Jeannette Curtis |
| Reviewed By: | Kathleen Romito, MD - Family Medicine, Christopher J. Rudnisky, MD, FRCSC - Ophthalmology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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