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Understanding the Various Types of Glaucoma

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An optometrist adjusts a phoropter for a seated patient during an eye exam in a clinic.

Key Takeaways

  • Glaucoma damages the optic nerve, the link between your eye and brain.
  • Open-angle glaucoma moves slowly and affects side vision first.
  • Angle-closure glaucoma can come on fast and needs quick attention.
  • Injury, steroid use, and some health conditions can lead to secondary types.
  • Routine eye exams help catch glaucoma, often before it affects daily life.

Glaucoma often works quietly, changing your sight before you notice a single symptom. Our team at See & Be Seen Eyecare wants you to learn about it, especially if you value clear vision for years to come.

Glaucoma is a group of eye conditions that damage the optic nerve, often linked to raised pressure inside the eye, and the type you have shapes how it’s found and managed.

What Is Glaucoma?

Your optic nerve carries what you see to your brain, like a cable sending signals. When pressure builds inside your eye, it can slowly wear down that nerve.

This pressure often comes from fluid that can’t drain the way it should. As it collects, it pushes against delicate nerve fibres.

The tricky part is timing. Early stages rarely come with pain or blur, so many people feel completely fine while small changes are already happening. Eye disease diagnosis during a routine visit is often how the first signs show up.

Open-Angle Glaucoma

Open-angle glaucoma is the type eye doctors see most often. It progresses so gradually that it’s usually spotted at a routine exam rather than through symptoms you’d notice on your own.

Your side vision tends to fade first. You might keep sharp central sight for a long time, which is part of why this type can go unnoticed.

Who Faces Higher Risk

Some people have a greater chance of developing this type. Knowing where you stand helps you and our team plan how often to check. Risk factors can include:

  • Being over age 50
  • Having a parent or sibling with glaucoma
  • Being nearsighted

How Our Team Spots It

Finding open-angle glaucoma takes more than a quick look. Our team uses optic nerve scans and pressure checks to see how your eye is doing.

A visual field test maps your side vision, showing any gaps you might not feel yet. Together, these tests give a clear picture over time.

Angle-Closure Glaucoma 

Angle-closure glaucoma behaves differently. The drainage angle inside your eye can block suddenly, and pressure climbs quickly, often with real pain.

This kind of episode calls for prompt emergency eye care. Acting quickly helps protect the optic nerve from lasting harm.

An optometrist examines a patient's eyes using a slit lamp during an eye exam in a clinic.
An optometrist examines a patient’s eyes using a slit lamp during an eye exam in a clinic.

Warning Signs to Watch For

If you notice any of the following signs, it is important that you book an eye exam to have your eye health checked. 

  • Sudden eye pain and redness
  • A strong headache
  • Nausea or vomiting
  • Rainbow-coloured halos around lights

Chronic Angle-Closure Type

Not every case arrives in a rush. Some people have naturally narrow angles, so pressure builds slowly instead. This slower form shows up more often in people who are farsighted, and regular checks help keep an eye on it.

Secondary and Congenital Types of Glaucoma

Sometimes glaucoma develops alongside another issue. Long-term steroid medication can raise eye pressure, and an eye injury or trauma can damage the drainage system.

Babies can be born with changes in the eye that affect drainage too. These congenital cases are rare, yet early attention makes a real difference for a child’s sight.

Other Contributing Factors

A few health and eye conditions can play a role in secondary glaucoma. Spotting them early helps our team manage pressure sooner. These can include:

  • Diabetes and inflammation inside the eye
  • Pigment dispersion, which shows up more in younger adults

How Regular Eye Exams Protect Your Vision

Regular eye exams give our team a chance to find glaucoma early, during careful eye disease diagnosis. The sooner it’s found, the more options you have.

Depending on your case, care might include eye drops, laser treatment, or surgery to help manage pressure. Follow-up visits keep that pressure in check and let the team adjust as needed.

How Often to Book a Visit

A good routine depends on your age and history. Booking an exam every 2 years works for many people under 65. Once you reach 65, or if glaucoma runs in your family, a yearly visit helps our team stay ahead of any changes.

Take Care of Your Vision

Your vision deserves steady, thoughtful attention. Book your next eye exam with See & Be Seen Eyecare and give your eyes the care that fits both your health and your style.

See Clearly. Live Fully

Comprehensive eye care that supports and enhances your vision, helping keep it clear, comfortable, and well-maintained.

Visit Our Locations

We’re proud to be a part of the vibrant communities of Liberty Village and Yonge & Eglinton. Whether you’re stopping by for a routine eye exam, exploring our aesthetic services, or seeking specialized care for conditions like dry eyes or myopia, we’re here to serve you. 

Each of our locations is not just a place to receive top-tier eye care but also an extension of the neighbourhoods we’re deeply connected to.

See & Be Seen Eyecare Liberty Village

Visit us in the vibrant heart of Liberty Village, just steps from King West. We’re conveniently located next to Portrait Dental and directly across from Aroma.

  • #136 – 171 East Liberty Street
  • Toronto, ON M6K 3P6

See & Be Seen Eyecare Midtown

We’re excited to be part of the Yonge & Eglinton area! After your visit, explore the vibrant shops, dining, and entertainment this neighbourhood has to offer.

  • 2594 Yonge Street
  • Toronto, ON M4P 2J4

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