A mildly high eye pressure does not cause any noticeable symptoms or pain, but a very high pressure (likely 35 or higher) can cause pain in and around the eye and nausea or vomiting. That's one reason for you to see an ophthalmologist or optometrist regularly.
Place the tips of both index fingers on the closed upper eyelid. Keeping both fingertips in contact with the upper eyelid, apply gentle pressure through the closed eyelid, first gently pressing on the eye with the right index finger, then with the left, and then with the right again (Figure 1). Repeat on the other eye.
Excessive aqueous production: This is the clear fluid produced in the eye. With too much fluid production, a patient will feel pressure in the eye. Inadequate aqueous drainage: If the fluid drains slowly from the eye, this can cause increased eye pressure.
Doctors know that increased blood pressure results in increased eye pressure, possibly because high blood pressure increases the amount of fluid the eye produces and/or affects the eye's drainage system.
Your eye pressure is measured in millimeters of mercury, expressed as mm Hg. Normal eye pressure is between 10 to 21 mm Hg. High intraocular pressure is greater than 21 mm Hg.
For most types of glaucoma, a pressure sensation is actually not felt. So the most likely answer to our listener's question is NO. Most types of glaucoma do not have any symptoms. There is no pain.
“Pressure is highest typically in the morning, when you're just waking up, and lowest in the afternoon,” says Johnson. “So if you have a 4:00 pm. appointment at the doctor's office, that particular pressure may be the lowest pressure you'll have that day.”
Age-related change in IOP
In the cross-sectional analysis, average IOP increased from 12.7 mm Hg in subjects in their 20s to 14.0 mm Hg in those in their 40s. Then IOP decreased from 13.9 mm Hg in those in their 60s to 13.1 mm Hg in those in their 70s.
There's no cure for glaucoma, but early treatment can often stop the damage and protect your vision.