How High Eye Pressure Is Treated and Measured at M&M Eye Institute

High eye pressure is the fluid pressure inside your eye, and M&M Eye Institute measures it during a comprehensive eye exam in Prescott, Prescott Valley, and Chino Valley in Arizona, to help detect glaucoma risk and other optic nerve concerns. High eye pressure often causes no symptoms, but it can raise the chance of optic nerve damage over time. The good news is that your eye doctor can accurately measure high eye pressure, track changes, and treat it to help protect your vision in the long term.

If you have been told your numbers run high, you are not alone. Next, let’s break down what those numbers mean, how testing works, and what treatment options can look like.

What High Eye Pressure Actually Means

Doctors call eye pressure intraocular pressure (IOP). It comes from a clear fluid inside the eye called aqueous humor. Your eyes make this fluid all day. Then it drains through a tiny channel near the front of the eye.

When the fluid drains too slowly, pressure can rise. As a result, your eye doctor pays close attention to both:

• the pressure number, and

• how your optic nerve looks and functions

Most people fall between 10 and 21 mmHg, but “normal” is not a single number for everyone. Some eyes tolerate higher readings. Other eyes show damage at lower readings. That is why M&M Eye Institute looks at the full picture, not just one measurement.

How We Measure High Eye Pressure During an Eye Exam

Measuring high eye pressure is quick. Most patients describe it as easy and not painful. Also, your doctor may use more than one test, because each method adds useful detail.

Applanation tonometry

This test is often considered the most accurate option. First, we place numbing drops in your eye. Next, a small device gently touches the surface of the eye for a few seconds to measure pressure.

Non-contact tonometry (air puff)

This method uses a short puff of air to estimate pressure. It does not touch the eye, so it does not need numbing drops.

Handheld tonometry (Tonopen-style tools)

Sometimes, a handheld device works best, especially if a patient cannot sit comfortably at the slit lamp.

Because high eye pressure can change throughout the day, we may repeat measurements or re-check at a follow-up visit. That way, we do not make decisions based on a single reading.

What Can Cause High Eye Pressure?

High eye pressure usually happens because the eye’s drainage system is not clearing fluid as efficiently as it should. Common reasons include:

• Ocular hypertension, which means higher pressure without optic nerve damage

• Primary open-angle glaucoma, when pressure and optic nerve changes connect over time

• Narrow angles, when the drainage area is crowded

• Steroid medications, including drops, pills, injections, or creams near the eyes

• Eye inflammation or injury

• Family history of glaucoma

Even if you feel fine, high eye pressure still matters. That is because glaucoma-related vision loss can start quietly and progress slowly.

When to Seek Treatment

Here’s the key point: we do not treat high eye pressure only to “fix a number.” We treat it to lower the risk of optic nerve damage and vision loss.

So we look at:

• Your pressure readings over time

• optic nerve appearance

• OCT imaging results (when used)

• visual field testing (when used)

• corneal thickness and your overall risk profile

• your age, health history, and family history

Then we choose a plan that fits your situation, not a one-size-fits-all approach.

High Eye Pressure Treatment Options

Prescription eye drops

Eye drops are often the first step. Some drops reduce fluid production. Others help the eye drain fluid more effectively. Many patients control high eye pressure well with consistent daily use.

Laser treatment (often SLT)

Laser treatment can help improve the eye’s drainage system. For example, selective laser trabeculoplasty (SLT) is commonly used for open-angle glaucoma and may reduce your need for drops in some cases.

Minimally invasive glaucoma surgery (MIGS)

For certain patients, especially those already planning cataract surgery, MIGS procedures can help lower pressure with smaller incisions and a quicker recovery than traditional glaucoma surgery.

Traditional glaucoma surgery

If glaucoma is advanced or pressure stays high despite other options, surgery can create a new drainage pathway to lower pressure and protect the optic nerve.

Why Follow-up Testing Matters

High eye pressure often has no warning signs. That is exactly why follow-ups matter. Regular exams help your doctor:

• Catch rising pressure early

• Compare optic nerve changes over time

• review imaging results and visual field patterns

• Adjust treatment before damage progresses

In other words, monitoring turns guesswork into a clear plan.

When Should You Get Checked?

Adults should still get routine comprehensive eye exams even when vision seems normal. You may need more frequent checks if you have:

• a family history of glaucoma

• diabetes

• high myopia (strong nearsightedness)

• African American or Hispanic heritage

• long-term steroid use

Also, seek urgent care if you ever have sudden eye pain, severe headache, halos around lights, nausea, or fast vision changes. Those symptoms can suggest angle-closure glaucoma, which needs immediate evaluation.

Take the Next Step Toward Protecting Your Vision

High eye pressure can be easy to miss because it usually feels normal, but it is also easy to measure and manage when you stay on top of it. Schedule a comprehensive eye exam at M&M Eye Institute in Prescott Valley, Arizona, so we can check your pressure, evaluate your optic nerve, and build a plan that fits your eyes and your life.