If your contact lenses have started feeling less clear lately, cataracts might be one possible reason. Cataracts can cause blurry or foggy vision, dull colours, glare, halos around lights, and trouble seeing at night. For contact lens wearers, those symptoms can be confusing since they can feel like dry eyes, dirty lenses, or an outdated prescription.
This Cataract Awareness Month, it’s worth knowing that a cataract diagnosis does not automatically mean you have to stop wearing contacts. Some wearers can still use contact lenses safely, especially in the early stages. Your eye doctor will need to check your cataracts, prescription, lens fit, tear film, and overall eye health first.
Can You Wear Contact Lenses With Cataracts?
Yes, you can wear contact lenses with cataracts if your optometrist or ophthalmologist says your eyes are still suitable for lens wear. Cataracts affect the natural lens inside the eye, while contact lenses sit on the cornea, which is the clear front surface of the eye. Contacts do not treat cataracts. They can still correct nearsightedness, farsightedness, astigmatism, or presbyopia if the cataract is not blocking too much light. In the early stages, updated glasses or contacts can help sharpen vision.
Contact Lens Guide
Signs to watch for with cataracts
Click any row to learn what the sign may mean and what to do next.
| What you notice | What it could mean |
|---|---|
Contacts no longer feel as clear | Your prescription might have changed. |
Likely cause Prescription
What to do
| |
Vision looks cloudy even with contacts | The cataract could be affecting clarity. |
Likely cause Cataract
What to do
| |
Glare feels worse at night | Contacts might not fully solve the issue. |
Likely cause Glare / Scatter
What to do
| |
Colours look dull or yellowed | Cataracts can affect colour perception. |
Likely cause Colour Shift
What to do
| |
Eyes feel dry or irritated | Lens fit, dry eye, or eye surface health should be checked. |
Likely cause Dry Eye / Fit
What to do
| |
Why Cataracts Can Affect Your Contact Lens Prescription
Cataracts can change how light passes through your eye. That shift can make your contact lens prescription feel less accurate over time. You might notice that your lenses no longer give the same sharpness, even if you’re wearing the same type you’ve worn for years.
Your Vision Might Shift Over Time
Some wearers become more nearsighted as cataracts develop. Others notice weaker contrast, faded colours, more glare, or trouble reading in dim light. These changes can make it tempting to assume you need stronger lenses, but it’s safer to get an eye exam first.
Your Contacts Might Not Be The Problem
An optometrist can tell whether the change comes from cataracts, dry eye, lens deposits, lens fit, or another eye health concern. This is especially helpful if your vision changes throughout the day or if your contacts feel less comfortable than before.
When Contacts Can Still Work Well
Contact lenses can still work well when cataracts are mild, and your eyes tolerate lenses comfortably. Your optometrist can check whether your lenses fit correctly, move properly, and give you safe vision.
Contacts can also still be useful for wearers who prefer them for work, errands, outdoor plans, or active days. If your vision improves with an updated prescription and your eyes feel comfortable, your doctor can guide you on how to keep wearing them safely.
Cataract Awareness Month is also a good reminder to protect your eyes outdoors. The Canadian Ophthalmological Society recommends reducing ultraviolet exposure with sunglasses and a wide-brimmed hat, along with regular eye exams and not smoking. Contact lenses with UV protection can help, but they do not cover the entire eye area, so sunglasses still matter outdoors.
When Contact Lenses Might Not Be Enough
Contact lenses might not be enough when cataracts start affecting daily life. If the natural lens inside your eye becomes too cloudy, a stronger contact lens prescription cannot fully clear your vision.
Daily Tasks Can Become Harder
You might find it harder to drive at night, read in dim lighting, see road signs, or handle glare from headlights. At that point, the issue is not only your contact lens prescription. The cloudy lens inside the eye is blocking clearer vision.
Cataract Surgery Might Become Part Of The Conversation
Eyeglasses, contact lenses, and other vision aids can help some people manage cataracts for a time. Surgery is the only way to remove a cataract, but it does not have to happen right away for every person. Your eye doctor can explain the timing based on your vision, comfort, and daily needs.
How To Wear Contacts Safely With Cataracts
Contact lenses are medical devices in Canada, so safe wear still matters after a cataract diagnosis. Good lens habits can reduce avoidable irritation, infection risk, and corneal problems while your vision is changing.
Keep these habits in mind:
- Wash and dry your hands before touching your lenses.
- Replace your lenses on the schedule your optometrist gave you.
- Use the contact lens solution recommended for your lenses.
- Do not rinse or store lenses in tap water.
- Keep backup glasses nearby.
- Remove your lenses if your eyes feel painful, red, sensitive to light, or suddenly blurry.
If your eyes stay uncomfortable after removing your lenses, call your eye doctor. The same goes for sudden blur, discharge, severe redness, or light sensitivity.
Questions To Ask Your Eye Doctor
If you have cataracts and wear contacts, ask your eye doctor whether your cataracts are mild, moderate, or advanced. Ask if your current contact lens prescription still fits your eyes and daily routine.
You can also ask whether your symptoms are coming from cataracts, dry eye, lens fit, or another condition. If cataract surgery is being discussed, ask whether you need to stop wearing contacts before measurements or surgery. Your eye care team can also explain whether you’ll need glasses or contacts after surgery.
FAQ
Cataracts and contact lenses
Tap any question to read the answer.
Yes, cataracts can change how light passes through your eye, so your usual contact lens prescription can start feeling less clear. An eye exam can tell whether the change is from cataracts, dry eye, lens fit, or a regular prescription shift.
Contacts can correct your prescription, but they cannot clear the cloudy natural lens inside the eye. If the cataract is affecting how much light enters the eye, your vision can still look foggy even with fresh lenses.
Yes, cataracts can make glare, halos, and night vision problems more noticeable. Contacts can sharpen focus, but glare from cataracts often needs a separate conversation with your eye doctor.
Daily contacts are not automatically better for cataracts, but they can be helpful for some wearers who deal with dryness, deposits, or comfort issues. Your eye doctor can check whether daily lenses make sense for your prescription, eye surface, and cataract stage.
UV-blocking contacts can add protection, but they do not cover the whole eye area. Sunglasses and a wide-brimmed hat still matter outdoors, especially if you spend a lot of time in bright sunlight.
Call your eye doctor if you notice sudden blur, eye pain, strong redness, discharge, light sensitivity, or vision that does not improve after removing your contacts. These symptoms should not be treated as normal contact lens discomfort.
Your surgical team can ask you to stop wearing contacts before cataract measurements. This helps the eye return to its natural shape so the measurements for the artificial lens are more accurate.
Some wearers still need contacts or glasses after cataract surgery. It depends on your healing, final prescription, astigmatism, presbyopia needs, and the type of artificial lens used.
References
Cataracts. Canadian Association of Optometrists. https://opto.ca/eye-health-library/cataracts. Accessed June 8, 2026.
Cataracts. HealthLinkBC. https://www.healthlinkbc.ca/healthwise/cataracts. Accessed June 8, 2026.
Contact Lenses. Health Canada. https://www.canada.ca/en/health-canada/services/healthy-living/your-health/medical-information/contact-lenses.html. Published July 19, 2021. Accessed June 8, 2026.
June Is Cataract Awareness Month, And The Canadian Ophthalmological Society Reminds Canadians To Wear Sunglasses To Reduce The Risk Of Developing Cataract Disease. Canadian Ophthalmological Society. https://www.cos-sco.ca/june-is-cataract-awareness-month-and-the-canadian-ophthalmological-society-reminds-canadians-to-wear-sunglasses-to-reduce-the-risk-of-developing-cataract-disease/. Published June 3, 2022. Accessed June 8, 2026.
