Normal Eye Pressure Range By Age
What is good eye pressure? Normal eye pressure is defined as having an intraocular eye pressure measurement of 10 to 21 mm Hg. Your risk of glaucoma and intraocular eye pressure increases as you get older. Experiencing high eye pressure before turning 40 could be a sign of a more serious condition.
According to one study that tested a group of 3135 patients with an average age of 64.1 years old, the average eye pressure measurement was 14.7 mm HG. The results found that most people aged 40 to 54 years old had an eye pressure measurement of 20 to 21 mm Hg while people over the age of 80 had a reading of 18 to 19 mm Hg. The results also showed that a high eye pressure reading was associated with younger age, high blood sugar levels, a higher pulse rate, high diastolic blood pressure, and a higher consumption of alcohol.
The eye pressure measurement decreased by 0.50 and 0.76 mm Hg for every increase in age by ten years. In the group of 50 to 55 year olds, the age-adjusted eye measurements ranged from 9 to 18 mm HG while the group of 75 year olds and above ranged from 8 to 18 mm HG.
Graph source: https://www.allaboutvision.com/conditions/hypertension.htm
How Is Blood Pressure Measured
Blood pressure is measured in millimetres of mercury using a simple machine. When you have it measured it will be written as two numbers, a top number and a bottom number. For example, if your reading is 120/80mmHg, your blood pressure is 120 over 80.
Find out more about and if yours is in the healthy range.
What Is A High Blood Pressure Reading
You will probably be diagnosed with high blood pressure if your readings are consistently 140/90mmHg or higher over a number of weeks. This is the cut-off point many GPs use for diagnosing high blood pressure.
You might also have high blood pressure if just one of the numbers is higher than it should be so if the top number is over 140mmHg or the bottom number is over 90mmHg.
A single high reading doesnt necessarily mean you have high blood pressure, as many things can affect your blood pressure throughout the day and it could just be a one-off. If you have a high reading, your doctor or nurse will want to see if it stays high over time before diagnosing high blood pressure.
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What Does Normal Pressure In Your Eyes Feel Like
According to the American Academy of Ophthalmology, eye pressure is measured by the amount of fluid in your eye. Its similar to measuring your blood pressure. Your eye contains a substance called vitreous humor, which looks and feels like jelly and is located in the back of your eye. Aqueous humor is a watery liquid that is also located in your eye, but its mostly in the front part of the eye in front of the iris and behind the cornea.
In a normal or healthy eye, there is a small amount of aqueous humor that always enters while an equal amount drains. Most of this liquid flows out of the eye through an area in front of the iris known as the drainage angle. This continuous flow ensure that you have a steady pressure in your eyes. So, what causes eye pressure to go up? An imbalance in this procedure can make you feel like you have too much or too little eye pressure in your eyes.
Normal eye pressure should feel comfortable. In other words, it should feel like nothing is wrong with your eyes. This indicates that the drainage angle is working properly and there are no issues. You can measure your eye pressure in millimeters of mercury or mm, similar to how a thermometer measures temperature. Normal eye pressure measures between 10 and 20 mm. Some people have high or low eye pressure with no other symptoms. Others experience vision loss or optic nerve damage.
Risks Of High Blood Pressure
If your blood pressure is too high, it puts extra strain on your blood vessels, heart and other organs, such as the brain, kidneys and eyes.
Persistent high blood pressure can increase your risk of a number of serious and potentially life-threatening health conditions, such as:
- have a relative with high blood pressure
- are of black African or black Caribbean descent
- live in a deprived area
Making healthy lifestyle changes can sometimes help reduce your chances of getting high blood pressure and help lower your blood pressure if it’s already high.
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Symptoms Of High Blood Pressure In Women
High blood pressure doesnt always cause symptoms. In fact, its sometimes referred to as a silent condition because most people with high blood pressure have no symptoms at all.
Often, symptoms dont appear at all until someone has had high blood pressure for years and the condition has become severe, but even people with severe high blood pressure might have no symptoms at all.
When symptoms do occur, they look the same in everyone and might include:
But these symptoms only occur once elevated blood pressure has caused the damaged blood vessels to break. The only real sign of high blood pressure is getting consistently high blood pressure readings. Thats why its important to have your blood pressure checked at least once a year.
What Is Intraocular Eye Pressure
If youve ever told your doctor, I have pressure in my eyes, then you may be at risk for developing high eye pressure, which is otherwise known as intraocular eye pressure. Elevated eye pressure is a cause for concern because it is a risk factor for glaucoma. Studies show that lowering your intraocular eye pressure can help preserve your vision. For this reason, your eye doctor may want to do an eye test right away to determine your eye pressure causes.
Intraocular eye pressure refers to the sensation of pressure behind eyeballs. It may occur as a pressure behind left eye or a pressure behind right eye. Although the criteria for high eye pressure have changed over the years, here are some factors that remain consistent with signs of high eye pressure:
- A pressure that measures 21 mm Hg or more in one or both eyes during one of your doctor visits
- Your side vision appears to be normal
- There are no signs of glaucoma yet
- Your drainage system or angle is open, narrow, or closed
- There are no other signs of ocular disease present
Intraocular eye pressure is not considered a disease itself. If you have a pressure behind eye, your doctor may watch you more closely to determine whether or not youll get glaucoma. He or she may do an eye exam to determine if you have a damaged optic nerve, which is often an indication of glaucoma.
Image source: https://www.allaboutvision.com/conditions/hypertension.htm
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Other Inconclusively Related Symptoms
A variety of symptoms may be indirectly related to, but are not always caused by, high blood pressure, such as:
- Blood spots in the eyes: Blood spots in the eyes are more common in people with diabetes or high blood pressure, but neither condition causes the blood spots. Floaters in the eyes are also not related to high blood pressure. However, an eye doctor may be able to detect damage to the optic nerve caused by untreated high blood pressure.
- Facial flushing: Facial flushing occurs when blood vessels in the face dilate. It can occur unpredictably or in response to certain triggers such as sun exposure, cold weather, spicy foods, wind, hot drinks and skin-care products. Facial flushing can also occur with emotional stress, exposure to heat or hot water, alcohol consumption and exercise all of which can raise blood pressure temporarily. While facial flushing may occur while your blood pressure is higher than usual, high blood pressure is not the cause of facial flushing.
- Dizziness: While dizziness can be a side effect of some blood pressure medications, it is not caused by high blood pressure. However, dizziness should not be ignored, especially if the onset is sudden. Sudden dizziness, loss of balance or coordination and trouble walking are all warning signs of a stroke. High blood pressure is a leading risk factor for stroke.
Written by American Heart Association editorial staff and reviewed by science and medicine advisers. See our editorial policies and staff.
How Blood Pressure Is Measured
Hypertension can be mild, moderate or severe. Your blood pressure is naturally higher when you are exerting yourself, such as during physical exercise. It is only a concern if your blood pressure is high when you are at rest, because this means your heart is overworked and your arteries have extra stress in their walls.Blood pressure readings are a combination of two measurements. These are:
- Systolic is the highest pressure against the arteries as the heart pumps. The normal systolic pressure is usually between 110 and 130mmHg.
- Diastolic is the pressure against the arteries as the heart relaxes and fills with blood. The normal diastolic pressure is usually between 70 and 80mmHg.
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What Are The Symptoms Of High Blood Pressure
Most people who have high blood pressure do not have symptoms. This is why its sometimes called the silent killer. It is very important to have your blood pressure checked regularly.
Some people experience headaches, nosebleeds, or shortness of breath with high blood pressure. However, those symptoms can mimic many other things . Usually, these symptoms occur once blood pressure has reached a dangerously high level over a period of time.
Diagnosing High Blood Pressure
Diagnosing hypertension is as simple as taking a blood pressure reading. Most doctors offices check blood pressure as part of a routine visit. If you dont receive a blood pressure reading at your next appointment, request one.
If your blood pressure is elevated, your doctor may request you have more readings over the course of a few days or weeks. A hypertension diagnosis is rarely given after just one reading.
Your doctor needs to see evidence of a sustained problem. Thats because your environment can contribute to increased blood pressure, like the stress you may feel by being at the doctors office. Also, blood pressure levels change throughout the day.
If your blood pressure remains high, your doctor will likely conduct more tests to rule out underlying conditions. These tests can include:
- cholesterol screening and other blood tests
- test of your hearts electrical activity with an electrocardiogram
- ultrasound of your heart or kidneys
- home blood pressure monitor to monitor your blood pressure over a 24-hour period at home
These tests can help your doctor identify any secondary issues causing your elevated blood pressure. They can also look at the effects high blood pressure may have had on your organs.
During this time, your doctor may begin treating your hypertension. Early treatment may reduce your risk of lasting damage.
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What Should Your Blood Pressure Be
Ideally, we should all have a blood pressure reading between 90/60mmHg and 120/80mmHg.
Most people in the UK have blood pressures higher than the ideal, but below the usual cut-off for diagnosing high blood pressure somewhere between 120/80mmHg and 140/90mmHg. If youre in this range, you could develop high blood pressure in the future. Taking steps to will keep your risk of health problems down.
In Most Cases High Blood Pressure Does Not Cause Headaches Or Nosebleeds
- The best evidence indicates that high blood pressure does not cause headaches or nosebleeds, except in the case of hypertensive crisis, a medical emergency when blood pressure is 180/120 mm Hg or higher. If your blood pressure is unusually high AND you have headache or nosebleed and are feeling unwell, wait five minutes and retest. If your reading remains at 180/120 mm Hg or higher, call 911.
- If you are experiencing severe headaches or nosebleeds and are otherwise unwell, contact your doctor as they could be symptoms of other health conditions.
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What Is The Correct Way To Measure Blood Pressure
Learn the correct way to have your blood pressure taken, whether youre getting it checked at the doctors office or checking it yourself at home. Use this checklist:
- Dont eat or drink anything 30 minutes before you take your blood pressure.
- Empty your bladder before your reading.
- Sit in a comfortable chair with your back supported for at least 5 minutes before your reading.
- Put both feet flat on the ground and keep your legs uncrossed.
- Rest your arm with the cuff on a table at chest height.
- Make sure the blood pressure cuff is snug but not too tight. The cuff should be against your bare skin, not over clothing.
- Do not talk while your blood pressure is being measured.
If you are keeping track of your blood pressure at home, use these additional tips.
Causes And Risk Factors Of High Blood Pressure
The following can increase your chances of developing high blood pressure.
Older AgeRaceGenderFamily HistoryBeing OverweightLack of Physical ActivityTobacco Use
Dietary Choices What you choose to eat can increase your risk of hypertension, per the Mayo Clinic:
- Too much sodium can cause your body to retain fluid, which increases blood pressure.
- Since potassium helps balance the amount of sodium in your cells, not getting enough of it can raise blood pressure.
Alcohol ConsumptionStressChronic ConditionsPregnancyBirth Control
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Symptoms Of High Blood Pressure In Elderly Women
Theres no change to the symptoms of high blood pressure as a person ages. Although cis women who are past menopause are at higher risk for high blood pressure, theyre still unlikely to experience any symptoms at all. High blood pressure is still a silent condition in older women.
If any symptoms do occur, theyll be likely to be flushing, red spots in front of the eyes, and dizziness. But the best way for older women to monitor their blood pressure is to keep track of their blood pressure numbers and have conversations about their blood pressure with their healthcare professional.
The overall risk for high blood pressure goes up as everyone ages, regardless of sex or gender.
What Should I Do If I Have High Blood Pressure
If your healthcare provider has diagnosed you with high blood pressure, they will talk with you about your recommended blood pressure target or goal. They may suggest that you:
- Check your blood pressure regularly with a home blood pressure monitor. These are automated electronic monitors and are available at most pharmacies or online.
- Quit smoking and/or using tobacco products.
- Work on controlling anger and managing stress.
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How Does High Blood Pressure Affect You
Know the signs and symptoms of high blood pressure, to understand how to know if your blood pressure is high. High blood pressure can affect every person in a slightly different manner and being a silent killer, is difficult to spot it.
Sometimes, people having high blood pressure may experience symptoms like headaches, dizziness, nose bleeds, blurring of vision or difficulty in normal vision, overall discomfort, nausea and sometimes vomiting.
While these symptoms are also commonly noticed in other conditions, it is worth checking your blood pressure if you experience these symptoms to know if your blood pressure is high. Also, these symptoms may not be necessarily experienced in the initial period and is mostly noticed after much damage is caused.
Hence, it is better to seek medical advice, if you experience these symptoms. Regular monitoring can help you to know if your blood pressure is high.
What Can I Do To Prevent Or Manage High Blood Pressure
Many people with high blood pressure can lower their blood pressure into a healthy range or keep their numbers in a healthy range by making lifestyle changes. Talk with your health care team about
- Getting at least 150 minutes of physical activity each week
- Not smoking
- Managing stress
Learn more about ways to manage and prevent high blood pressure.
In addition to making positive lifestyle changes, some people with high blood pressure need to take medicine to manage their blood pressure. Learn more about medicines for high blood pressure.
Talk with your health care team right away if you think you have high blood pressure or if youve been told you have high blood pressure but do not have it under control.
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Why Is Your Blood Pressure Important
Your blood pressure is important because if it is too high, it affects the blood flow to your organs. Over the years, this increases your chances of developing heart disease, stroke, chronic kidney disease, eye disease, erectile dysfunction and other conditions.
Very occasionally, people with very high blood pressure are at serious risk of problems and need urgent treatment in hospital to reduce the risk of a stroke or heart attack.
Current Australian guidelines recommend that if you have persistent raised blood pressure over 160/100 mmHg, but are at low risk of having a stroke or heart attack, you should talk to your doctor or specialist about taking medication to lower your blood pressure.
For further information, visit the Choosing Wisely Australia website.
If youre over 18, you should have your blood pressure checked by your doctor at least every 2 years, or more often if advised.