Can an eye prescription cause headaches?

An uncorrected or changing refractive error can contribute to visual discomfort and headaches in some patients, particularly during prolonged near work. However, headaches have many possible causes, so changing a glasses prescription is not appropriate for every headache.

Can glaucoma cause headaches?

Most glaucoma is painless and does not cause headaches. Acute angle-closure glaucoma is an important exception and can cause severe eye pain, headache, blurred vision, halos around lights, nausea, and vomiting.

Can an eye exam detect a brain problem?

An eye examination cannot diagnose every neurological condition. However, examination of the optic nerves and visual system can reveal findings such as papilledema or other abnormalities that may indicate the need for further neurological investigation.

Eye Exam Archives | North Toronto Eye Care

When Headaches Are Actually Eye Related

astigmatism,Eye Exam,Eye Health,Featured,Glaucoma,Medical News,Presbyopia

Headaches are incredibly common. Lack of sleep, dehydration, stress, migraines, sinus problems, medications, and many other conditions can all cause head pain. But sometimes, a headache may be connected to the eyes. The important question is not simply “Can eye problems cause headaches?” They can. The more important question is when a headache becomes a…

Woman with closed eyes holding head, wearing a knitted sweater, possibly experiencing discomfort.

Why Contact Lens Wearers Develop Dry Eye

cornea,Dry Eye,Eye Exam,Eye Health,Featured,Medical Technology

If you wear contact lenses and often feel dryness, grittiness, or end-of-day discomfort, you’re not alone. Contact lens wear is one of the most common triggers of dry eye symptoms, and it happens through well-understood changes to your tear film and eyelid glands. How contact lenses disrupt the tear film A healthy tear film has…

Hands arranging contact lens accessories on white background, emphasizing vision care.

Blue Light Glasses — Helpful or Hype?

Eye Exam,Eye Health,Featured,Medical News,Medical Technology,What's New

Screens are now part of everyday life. Whether you are working at a computer, studying, gaming, or using your phone, you may have heard that blue light blocking glasses can reduce eye strain, improve sleep, or protect your eyes from long-term damage. But do these glasses actually work? The short answer is that blue light-filtering…

Asian woman wearing glasses intensely working on a laptop at a desk in a modern office setting.

Autoimmune Diseases That Affect the Eyes

Eye Exam,Eye Health,Featured,Medical News

Your eyes don’t simply help you see—they can also provide important clues about your overall health. In some cases, the first signs of an autoimmune disease appear in the eyes before the rest of the body. Persistent dry eyes, unexplained eye pain, double vision, redness, or sudden vision changes may not simply be an “eye…

What Is SLT?

Eye Exam,Glaucoma,Medical Technology

Selective Laser Trabeculoplasty (SLT) is a modern, minimally invasive laser treatment that helps lower eye pressure in patients with glaucoma and ocular hypertension, and it is offered by our glaucoma specialists at North Toronto Eye Care. SLT (Selective Laser Trabeculoplasty) is a laser procedure that targets the eye’s natural drainage tissue (trabecular meshwork) to improve…

How Allergies Affect Your Eyes

cornea,Dry Eye,Eye Exam,Eye Health,Featured,Medical News

For many people, allergy season means sneezing, congestion, and a runny nose. But allergies can affect more than your sinuses — they can also have a major impact on your eyes. If your eyes become itchy, red, watery, swollen, or irritated during certain times of the year, you may be experiencing ocular allergies, also known…

Eye Exams and Brain Health

Cataract,Eye Exam,Eye Health,Glaucoma,Retina

Most people think of their eyes as simple focusing tools—something that either works well or needs glasses. But research shows something far more important: your eyes are closely connected to your brain, and changes in vision may signal changes in cognitive health. A long-term study following over 1,200 adults for 16 years found a strong…

Brain-shaped eraser with a light bulb paperclip on a pastel pink background. Ideal for education and creativity themes.

Protecting Your Eyes and Nerves — Ocular Shingles

cornea,Eye Exam,Eye Health,Featured,Medical News

For most of us, chickenpox is a distant childhood memory—itchy spots, calamine lotion, and a week off school. But the virus behind it, varicella-zoster (VZV), doesn’t disappear when those spots heal. It retreats deep into the sensory nerves, where it can remain dormant for decades. When the immune system weakens with age, stress, or illness,…

Beyond the Blur: Protecting Your Vision from AMD

Eye Exam,Eye Health,Featured,Medical News,Retina,What's New

Central vision is the silent narrator of our daily lives. It is the clarity that allows you to recognize a grandchild’s smile across a room, thread a needle for a quick repair, or read the precise time on a grandfather clock. This vital focus is powered by the macula—a tiny but mighty part of the…

The Impact of Smoking and Vaping on Eye Health

Cataract,Dry Eye,Eye Exam,Eye Health,Featured,Glaucoma,Medical News,Retina,What's New

Smoking and vaping are major, yet preventable, causes of serious eye diseases. Studies show that smokers are up to four times more likely to develop Age‑Related Macular Degeneration (AMD) and may experience vision loss up to a decade earlier than non‑smokers. Beyond AMD, smoking increases the risk of cataracts, glaucoma, and reduced blood flow to the retina and optic nerve. Even…