Orbit Blood Pressure Measurement (Systolic/Diastolic) via Tonometer
This test measures your blood pressure in the eye using a specialized device called an applanation tonometer. It helps assess intraocular pressure, which can be linked to conditions like glaucoma.
["Eye pressure testing may help detect or monitor conditions affecting your vision."]
Key facts at a glance
- LOINC
- 37611-1
- Short code
- XR tomo Orbit-Bl
- Synonyms
- XR tomo Orbit-Bl
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr-tomography
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your healthcare provider may recommend this test if you have symptoms like vision changes, eye pain, or a family history of glaucoma or other eye pressure-related diseases. It’s also used during eye exams for patients at higher risk for eye conditions.
How Is the Test Performed?
The test involves placing a small, flat tip on your eye to gently flatten the cornea. A quick puff of air or pressure is applied to measure the pressure inside your eye. The procedure is quick and painless, though it may cause a slight sensation of pressure or discomfort for a moment.
What Does the Result Mean?
Results are not typically reported as a single numeric value in this context, but your provider will interpret the measurement in relation to your clinical needs. High intraocular pressure may indicate glaucoma or other eye conditions requiring further evaluation.
What Are Common Causes or Risks?
Factors that may increase risk include aging, family history of glaucoma, high blood pressure, diabetes, or certain medications. Lifestyle factors like smoking or excessive alcohol use may also play a role.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is critical for diagnosing and monitoring glaucoma, a condition where increased pressure inside the eye damages the optic nerve, potentially leading to vision loss. Early detection through regular eye exams can help prevent progression.
Frequently asked questions
How often should I get this test?
What should I do if I experience eye discomfort during the test?
Can I eat or drink before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy