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Can a Regular Eye Exam Detect Cataracts?

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Optometrist smiling, using a slit lamp to examine an older adult's eye in an eye exam room with an eye chart on the wall.

Key Takeaways

  • A routine eye exam can detect cataracts, sometimes before you notice any changes in your vision.
  • Cataracts develop slowly, and early signs like blurry vision or light sensitivity are easy to miss on your own.
  • Optometrists use specific tools during an exam to check the lens directly for signs of cataracts.
  • Catching cataracts early helps your optometrist monitor changes and plan next steps at the right time.
  • Certain habits, like wearing UV-protective sunglasses, can support long-term eye health.

If you or a loved one has been noticing changes in your vision, you may be wondering if cataracts could be the cause. Maybe colours have seemed a bit washed out, or driving at night has been more difficult than it used to be. At Northern Lights Optometry, we use technology during routine eye exams to detect signs of catara

Yes, a regular eye exam can detect cataracts, sometimes before you’re even aware something has changed. That’s one reason routine eye care matters well beyond updating a glasses prescription.

An Overview of Cataracts

Inside your eye is a natural lens that focuses light onto the retina at the back of your eye. As you age, proteins in that normally clear lens can begin to clump together , blocking or scattering light instead of letting it pass through clearly. That cloudiness is a cataract.

Cataracts develop slowly, which is exactly what makes them easy to miss at first. You won’t wake up one morning with a cataract. The changes build over months or years, and most people don’t notice anything unusual until the cloudiness has already progressed.

Signs and Symptoms Worth Knowing

How Long You Can Have Cataracts Without Knowing?

You can have a cataract for years without realizing it. Many cataracts develop slowly, so you may not have symptoms at first. By the time you notice something is wrong, the cataract may already be more advanced.

Signs of a Cataract

As the cataract progresses, you may notice signs that your vision is changing. Things may look blurry or dim, even if your glasses prescription is up to date. You might find yourself needing updated glasses more frequently than usual.

Bright lights, glare, or halos around headlights at night can become more noticeable. Colours that once looked vivid may start to appear faded or slightly yellow, as if you’re staring out of a foggy window.

How a Regular Eye Exam Detects Cataracts

Technology Used During the Exam

Several parts of a comprehensive eye exam work together to spot cataracts. During a slit-lamp exam, your optometrist shines a thin beam of light into your eye and looks directly at the lens for any signs of cataracts. A visual acuity test checks how clearly you can see at different distances and can flag unexplained changes.

When your pupils are dilated, your optometrist can get a better view of the retina and other structures at the back of your eye . Together with other parts of the eye exam, this helps your optometrist assess your overall eye health and determine whether any follow-up are is needed.

Older adult squinting and holding eyeglasses up to inspect them near a kitchen window, expression focused.

What Happens After a Cataract Is Found?

Minor Cataracts

Not every cataract needs immediate surgery. When a cataract is caught early, an updated glasses prescription can help manage vision changes in the short term. Your eye care team can schedule routine follow-up appointments to track how the cataract is progressing, so nothing gets missed as time goes on. Some individuals can manage cataracts for years without surgery.

More Progressed Cataracts

When a cataract has progressed and affects daily life, your optometrist can refer you to an ophthalmologist for surgical treatment. Cataract surgery involves removing the clouded lens and replacing it with a clear artificial one. Your optometrist and ophthalmologist can work together to support your care throughout the entire process.

Risk Factors and Eye Health Habits

Common Risk Factors

Age is the most common factor associated with cataracts, but it’s not the only one. UV exposure, smoking, a family history of cataracts, and diabetes are all linked to a higher likelihood of developing them. A past eye injury or trauma can also contribute to cataract formation in some cases.

Habits That Support Eye Health

There are a few habits that can support your eye health over time. Wearing sunglasses with 100% UV protection whenever you’re outdoors helps reduce long-term UV exposure. If you’re managing a condition like diabetes, keeping up with your overall health care also helps protect your eyes.

Making regular eye exams part of your routine gives our care team the chance to identify changes early and monitor them over time.

Schedule Your Eye Exam

At Northern Lights Optometry, our team is here to support your vision at every stage, whether that means monitoring early changes, updating your prescription, or connecting you with the right specialist when needed. If it’s been a while since your last eye exam, or if something just doesn’t feel quite right with your vision, we encourage you to book an appointment with your optometrist in Whitehorse today.

Written by Dr. Guy Gorrell

With an undergraduate degree in biology from the University of the Okanagan, Dr. Guy Gorrell pursued his Doctor of Optometry at Pacific University, where he graduated with distinction. Dr. Gorrell’s educational interests and skills were enhanced through clinical rotations in clinics offering full-scope optometry, focusing on the medical aspects of optometry, both surgical co-management and ocular pathology. Upon graduation in 2003, Dr. Gorrell brought his education and experience back to his home in Whitehorse, where he was able to work side-by-side with his father, Dr. Ronald Gorrell. Upon Dr. Ronald Gorrell’s retirement, after 40 years of optometric service to the Yukon, the practice changed hands and remains locally owned and operated by Dr. Guy Gorrell. Dr. Gorrell holds hospital privileges at Whitehorse General Hospital and greatly appreciates having the opportunity to continue to offer care for multiple generations of Yukoners. Dr. Gorrell takes pride in remaining very current in his education and his practice philosophy. This has led him to numerous equipment upgrades allowing him to be proud of maintaining one of the most technologically advanced practices. Dr. Gorrell’s practice has the latest equipment for the early detection of conditions such as glaucoma and macular degeneration and various retinopathies such as diabetes. On many occasions, having these tools has allowed Yukoners to avoid travelling out of the Yukon for care because diagnosis and management can often be done locally. Dr. Gorrell feels it is of the utmost importance to create a personal bond between himself and his patients and educate them with the knowledge they need to understand whatever eye condition they may have. His focus on patient care and patient education will contribute not only to the visual health of his patients but also to their overall well-being. Away from his clinical responsibilities, Guy enjoys mountain biking, snow biking, and spending time with family.
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