Key Takeaways
- Keratoconus thins your cornea and reshapes it into a cone, which blurs your vision.
- It often shows up in your teens or 20s and can cause your prescription to change frequently.
- Corneal mapping helps spot problems early, before your vision shifts too much.
- Glasses, special contact lenses, cross-linking, and other treatments can help manage the condition.
- Regular checkups and gentle eye habits help keep your sight steady over time.
What Keratoconus Means for Your Eyes
Keratoconus is an eye condition where your cornea thins and pushes forward into a cone. This distorts how light enters your eye, causing blurry or double vision. It can be managed with lenses, collagen cross-linking, and other treatments that help slow its progress and improve your vision.
A comprehensive eye exam with our team at Cowichan Eyecare can help spot keratoconus early, before it affects your daily life.
Signs You Might Notice
The early signs of keratoconus can resemble an everyday vision problem. Common symptoms include:
- Blurry or distorted vision that doesn’t fully clear up
- Double vision when using one eye to see
- Prescription changes that happen more often than before
- Extra sensitivity to light and glare, especially at night
What Affects Keratoconus
Keratoconus is usually caused by a mix of factors. These include:
- A family history that makes you more likely to develop it
- Frequent eye rubbing that puts pressure on the cornea
- A link to certain health conditions, including some allergies
How the Team Checks for Keratoconus
Catching keratoconus early gives you more treatment options. Here’s what we do to diagnose the condition:
- Eye refraction tests to measure how sharp your vision is
- Corneal mapping that shows the topographical shape of your cornea
- Imaging tests that flag small changes before you notice them
What to Bring to Your Appointment
A little prep helps your appointment go smoothly. Here are the most important things to prepare:
- A short list of your symptoms and when they started
- Your current medications and any eye drops you use
- Questions you’d like to ask your eye doctor

Treatment Options to Improve Your Vision
There’s no single treatment path for everyone. The right choice depends on how far the condition has progressed and how your eyes respond.
Glasses and Contact Lenses
In the early stages of keratoconus, glasses or soft contact lenses can sharpen your vision. As your cornea changes shape, however, you may have to move to hard, hybrid, or scleral contact lenses that sit over the cone and create a smooth surface to see through.
Your Duncan optometrist can fit your contacts so that your vision remains comfortable.
Corneal Cross-Linking
Corneal cross-linking is a procedure designed to slow or halt the progression of keratoconus. First, your ophthalmologist removes the thin, out layer of your cornea. Next, they’ll apply riboflavin (vitamin B) drops, after which they use a focused light treatment to activate the riboflavin. This encourages the development of new bonds between the collagen fibers, thereby strengthening your cornea.
Ring Segments and Cornea Transplant
For more advanced cases of keratoconus, other options can help.
- Small ring segments placed in the cornea flatten and reshape it
- A transplant may be an option if the cornea is badly scarred
Daily Habits and Local Care That Help
Small choices each day can support your eyes between visits to your eye care professional:
- Resist rubbing your eyes, even when they feel itchy
- Schedule regular checkups, so that our team can track any change
- Find a Langford optometrist or Chemainus optometrist close to home
When to Book a Visit
Don’t wait for your symptoms to resolve on your own. If your vision shifts faster than it used to, if you’re noticing glare or sensitive vision, reach out to your Cobble Hill optometrist or Lake Cowichan optometrist.
At Cowichan Eyecare, we help families and seniors stay ahead of keratoconus with corneal mapping, lens fittings, and care close to home. Book your eye exam today and give your vision the attention it deserves.





