Why Regular Eye Exams Protect Your Sight

Glaucoma is often called the “thief of sight”—and for good reason. This group of eye diseases can quietly damage the optic nerve without noticeable symptoms in its early stages. By the time vision changes are detected, permanent vision loss may have already occurred. Understanding glaucoma, how it affects vision, and the tools available to support those living with it can help protect your eyesight for life.

What Is Glaucoma?

Glaucoma occurs when increased pressure inside the eye, or poor blood flow to the optic nerve, causes progressive nerve damage. The optic nerve is responsible for transmitting visual information from the eye to the brain. Once damaged, vision loss cannot be reversed.

There are several types of glaucoma, but primary open-angle glaucoma is the most common. It typically develops slowly and painlessly, which is why many people are unaware they have it.

How Glaucoma Affects Vision

Glaucoma usually affects peripheral (side) vision first. Early on, patients may not notice any changes at all. As the disease progresses, blind spots may develop, eventually leading to tunnel vision and, in severe cases, blindness.

Because central vision often remains clear until later stages, routine eye exams are critical—glaucoma can advance long before symptoms appear.

Why Annual Eye Exams Are Essential

Regular comprehensive eye exams with the doctors at Bissell Eye Care are the most effective way to detect glaucoma early. During an exam, your optometrist can measure eye pressure, evaluate the optic nerve, test peripheral vision, and use advanced imaging to monitor subtle changes over time.

Early detection allows for treatment—such as prescription eye drops, laser therapy, or surgery—that can slow or stop further vision loss. Skipping annual exams increases the risk of undetected damage.

If you have a family history of glaucoma, are over age 60, have diabetes, or are African American or Hispanic, your risk may be higher, making consistent eye care even more important.

Living With Glaucoma: Low Vision Aids and Support

For individuals who experience vision loss from glaucoma, low vision aids can greatly improve quality of life and independence. These tools are designed to maximize remaining vision and support everyday activities.

Common low vision aids for glaucoma patients include:

• Magnifiers (handheld, stand, or electronic) for reading and detailed tasks
• High-contrast and large-print materials to make text easier to see
• Specialized lighting to reduce glare and enhance visibility
• Prismatic glasses to help expand usable visual fields
• Electronic devices and apps that offer text enlargement, voice assistance, or contrast enhancement

A low vision evaluation with Dr. Bissell, who has received specialized training through the International Academy of Low Vision Specialists (IALVS), can help determine which tools are best suited to your needs and lifestyle.

Protecting Your Vision Starts Today

Glaucoma may be silent, but its effects are permanent if left untreated. The good news is that with early detection, proper treatment, and ongoing care, many people with glaucoma maintain functional vision for life.

Scheduling your annual eye exam isn’t just about seeing clearly today—it’s about protecting your vision for the future. If it’s been more than a year since your last exam, now is the time to take that important step.

Your sight is precious. Don’t let glaucoma steal it.

About Bissell Eye Care: John D. Bissell, OD, is the owner of Bissell Eye Care, proudly serving the Northern Pittsburgh and Alle-Kiski Valley regions. Dr. Bissell has received advanced training through the International Academy of Low Vision Specialists, enabling him to help patients living with vision impairment and low vision challenges. With two convenient office locations and evening appointments available, Bissell Eye Care offers comprehensive eye exams for the entire family—starting as young as six months. Our services include ocular disease detection and treatment, prescription eyeglasses and sunglasses, specialty activewear eyewear, contact lenses, and dedicated low vision evaluations for those with significant vision impairment and vision loss. We accept most vision and health insurance plans. To learn more, visit bisselleyecare.com or call our Bakerstown office at 724-443-6767 or our Natrona Heights office at 724-226-0444.