Eye pressure check glaucoma risk
Informed by recognized medical guidance
Overview
An eye pressure check is a simple test that measures the pressure inside your eye. High pressure can damage the nerve at the back of your eye and increase your risk of glaucoma, a condition that can lead to vision loss. This test helps catch problems early.
Key facts
- Glaucoma often has no early symptoms, so regular eye pressure checks are important for prevention.
- A normal eye pressure range is usually between 10 and 21 mmHg, but this varies per person.
- High eye pressure does not always mean you have glaucoma, but it is a major risk factor.
Yes, eye pressure checks are very common during routine eye exams. Glaucoma is one of the leading causes of blindness worldwide, but early detection can save your sight.
Anyone can have high eye pressure, but it is more common in people over 40, those with a family history of glaucoma, people of African or Hispanic heritage, and those with certain medical conditions like diabetes.
Symptoms
- Sudden, severe eye pain
- Sudden vision loss or blurring
- Redness in the eye with nausea or vomiting
- Seeing rainbow-colored rings around lights
- ⚠Gradual loss of side vision over days or weeks
- ⚠Eye pain that does not go away
- ⚠Blurry vision that comes and goes
Common symptoms
- High eye pressure usually has no symptoms on its own. That is why regular checks are important.
Symptoms in children
- In children, high eye pressure or glaucoma might cause a cloudy or enlarged eye, sensitivity to light, or excessive tearing.
Symptoms in older adults
- Older adults may notice gradual loss of side (peripheral) vision, often in both eyes, or see halos around lights.
Causes
Main causes
- High eye pressure is caused by a buildup of fluid (aqueous humor) inside the eye that does not drain properly.
Risk factors
- Age (over 40)
- Family history of glaucoma
- Being of African, Hispanic, or Asian descent
- Having high blood pressure or diabetes
- Being very nearsighted or farsighted
- Previous eye injury or surgery
- Long-term use of steroid medications (like eye drops or pills)
When to see a doctor
See a doctor urgently if:
- If you have sudden eye pain, vision changes, or see halos around lights, seek emergency care right away.
Book a routine appointment if:
- Everyone over 40 should have a comprehensive eye exam every 1 to 2 years, which includes an eye pressure check.
- If you have risk factors for glaucoma, your doctor may recommend more frequent checks.
Diagnosis
An eye pressure check is part of a comprehensive eye exam. Your eye doctor will measure the pressure using a device called a tonometer. If the pressure is high, they may do more tests to see if the optic nerve is damaged.
Tests that may be done
- Tonometry (the puff of air test or a gentle probe)
- Optic nerve examination (looking at the back of your eye)
- Visual field test (checking your side vision)
- Pachymetry (measuring the thickness of your cornea)
- Gonioscopy (examining the drainage angle of the eye)
What to expect at your appointment
During the check, you will sit in a chair and rest your chin and forehead on a machine. The doctor or technician will look into your eye and measure the pressure. It takes just a few seconds and is not painful.
Treatment
If your eye pressure is high and there is a risk of glaucoma, your doctor may recommend treatments to lower the pressure. The goal is to prevent vision loss. Treatment is usually lifelong, but it is effective.
Self-care at home
- Attend all your scheduled eye exams and follow your doctor's advice.
- Know your family history and share it with your eye doctor.
- Avoid eye rubbing and protect your eyes from injury.
Medical treatments
Treatment often starts with prescription eye drops that help lower eye pressure by reducing fluid production or improving drainage. Your doctor will choose the right drop for you. In some cases, oral medications or laser procedures may be used. Never stop or change treatment without talking to your doctor.
When is surgery considered?
If eye drops and laser treatments are not enough, surgery may be recommended to create a new drainage path for the fluid. This is typically a last resort but can be very effective.
Living with this condition
Living with high eye pressure or glaucoma means committing to regular checkups and using your eye drops as prescribed. Most people can lead a normal, active life.
Lifestyle tips
- Take your eye drops exactly as directed, even if you feel fine.
- Keep a record of when you use your drops.
- Wear sunglasses to reduce glare and protect your eyes.
Diet and exercise
A balanced diet rich in leafy greens, colorful fruits, and omega-3 fatty acids may support eye health. Moderate exercise like walking can help lower eye pressure. Avoid heavy lifting or inverted yoga poses if your doctor advises.
Mental health and emotional wellbeing
Being diagnosed with a condition that can affect vision can be stressful. It is normal to feel worried or anxious. Talk to your doctor about your feelings and seek support from family or a counselor.
Prevention
You cannot always prevent high eye pressure or glaucoma, but you can reduce your risk of vision loss by having regular eye exams. Early detection is the best prevention.
Screening programmes
Routine eye pressure checks and comprehensive eye exams are the main screening tools. If you are over 40 or have risk factors, talk to your doctor about how often you should be screened.
Complications
If left untreated
- Untreated high eye pressure can damage the optic nerve, leading to glaucoma.
- This can cause permanent loss of peripheral (side) vision, and eventually central vision, leading to blindness.
Long-term outlook
With early detection and treatment, vision loss from glaucoma can often be prevented or slowed. Most people with glaucoma who follow their treatment plan continue to see well for their lifetime. There is always hope and effective ways to manage the condition.
Find support
International organisations
- Glaucoma International
Local organisations
- Your local eye clinic or hospital ophthalmology department · All regions
Helplines
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 25, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.