Ordering contact lenses online in Canada is convenient, but one question comes up a lot: do you need a current prescription before you buy? The simple answer is yes, you should have a current contact lens prescription or contact lens record before ordering contacts online.
This is true for regular prescription contacts, and it also matters for coloured or cosmetic contact lenses. Even if the lenses have 0.00 power, they still touch the surface of your eye, so a prescription is necessary.
A proper eye exam and contact lens fitting help make sure your lenses are safe, comfortable, and suitable for your eyes before you place an order.
Do You Need a Prescription for Contact Lenses in Canada?
Yes, you should have a current contact lens prescription or contact lens record before ordering contact lenses in Canada. This is not just about knowing your vision power. Your prescription should also confirm the lens brand, base curve, diameter, and other fitting details needed to make sure the lenses sit properly on your eyes.
Why Contact Lenses Are Treated Differently Than Regular Products
Contact lenses are different from regular online purchases because they sit directly on the surface of your eye. That means the wrong lens can do more than just feel uncomfortable.
A poor fit or incorrect lens type may lead to:
- redness or irritation
- dry or watery eyes
- blurry vision
- scratches on the eye
- a higher risk of eye infections
This is why contacts should be chosen based on an eye exam and contact lens fitting.
Is It Legal to Order Contact Lenses Online in Canada?
Yes, Canadians can order contact lenses online. The important part is that you should order using accurate contact lens details from an optometrist, ophthalmologist, or other qualified eye care professional.
Some online stores may let you enter your lens information manually instead of uploading a prescription. That does not mean you should choose the lens yourself. You still need the correct prescription details, including the brand, power, base curve, diameter, and replacement schedule.
Rules around prescribing and dispensing can also vary by province, so the safest approach is simple: order contacts online only when you have a current contact lens prescription or contact lens record.
Also read: Contact Lenses for Outdoor Workers: UV Protection Guide
What Is a Contact Lens Prescription?
A contact lens prescription is the information your eye care professional gives you after checking both your vision and how a contact lens fits on your eye.
That means the prescription is not just about how clearly you can see. It also helps confirm the right lens shape, size, brand, and wearing schedule for your eyes.
Contact Lens Prescription vs. Eyeglass Prescription
|
Prescription Type |
What It Is For |
What It Usually Includes |
|
Eyeglass prescription |
Glasses that sit in front of your eyes |
Vision power for lenses in a frame |
|
Contact lens prescription |
Contact lenses that sit directly on your eyes |
Vision power, lens size, curve, brand, and fit details |
A glasses prescription alone is not enough to safely order contact lenses online. Even if your vision power looks the same, contacts need extra details because the lens touches your eye and must move, sit, and feel properly throughout the day.
What Information Is Usually Included?
A contact lens prescription or contact lens record may include:
- Power or sphere: the vision correction strength
- Base curve: the curve of the lens that helps it fit your eye
- Diameter: the width of the contact lens
- Brand or lens type: the exact lens recommended for your eyes
- Cylinder and axis: used for toric lenses if you have astigmatism
- Add power: used for multifocal contacts
- Expiry or reassessment date: when you should have your eyes checked again
When ordering contacts online in Canada, these details help you buy the exact lens your eye care professional fitted for you.
Also read: How to Put in Contacts Without Blinking: Beginner Tips
Why a Current Prescription Matters Before Ordering Contacts Online
- Your vision can change: Even small changes in power can affect how clearly you see with your contacts.
- Your comfort can change: Dryness, allergies, screen time, or health changes can make your usual lenses feel different.
- Fit affects more than comfort: The wrong base curve, diameter, or lens material can cause redness, irritation, or blurry vision.
- Old boxes are not always reliable: A previous lens box only shows what you wore before, not whether it is still right for you now.
- Expired prescriptions can lead to wrong orders: If your prescription is outdated, check with your optometrist before reordering online.
Can You Order Contacts Online Without Uploading a Prescription?
Some online stores may let you type in your contact lens details manually. That is fine only if you are copying the details from a recent contact lens prescription, fitting record, or your optometrist’s recommendation.
|
Detail You May Enter Online |
What to Use |
|
Brand name |
The exact brand your eye care professional fitted |
|
Power |
Your current contact lens power, not your glasses power |
|
Base curve |
The value listed on your contact lens record |
|
Diameter |
The size recommended for your lens type |
|
Replacement schedule |
Daily, bi-weekly, monthly, or as advised |
Why You Should Never Guess Your Contact Lens Details
- Wrong power: can cause blurry vision or eye strain.
- Wrong base curve: can make lenses feel too tight or unstable.
- Wrong diameter: can affect how the lens sits and moves.
- Wrong material: can make dryness or discomfort worse.
- Wrong schedule: can lead to overwearing lenses past their safe use period.
Do Coloured or Non-Prescription Contacts Need a Prescription?
Yes, coloured contacts still need proper care and sizing guidance. In Canada, decorative contact lenses are regulated as medical devices, even when they are used only for cosmetic colour change.
What “Non-Prescription” Really Means
-
0.00 power means the lens does not correct vision.
-
It does not mean one-size-fits-all.
-
It does not mean you can skip hygiene.
-
It does not mean you should buy from unknown sellers.
-
It does not mean you can ignore redness, pain, or irritation.
For coloured contacts, the safest approach is simple: choose lenses from a trusted retailer, follow the care instructions, and confirm sizing with an eye care professional if you are new to contacts.
How to Safely Order Contact Lenses Online in Canada
Use your current contact lens details and match the product exactly before placing an online order.
- Step 1: Get an eye exam and contact lens fitting so your optometrist can confirm the correct brand, power, base curve, diameter, and lens type.
- Step 2: Check that your prescription is current before reordering, especially if your lenses feel dry, blurry, irritating, or uncomfortable.
- Step 3: Order the exact lens recommended instead of switching brands, materials, or replacement schedules on your own.
-
Step 4: Buy from a reliable Canadian contact lens retailer that clearly shows product details, lens parameters, replacement schedule, and packaging information
What Happens If You Wear Contacts Without a Proper Prescription?
- Wearing contacts without the right prescription or fitting details can lead to comfort, vision, and eye health problems.
- Common risks: redness, dryness, irritation, blurry vision, eye strain, scratched cornea, eye infections, or reduced oxygen flow.
- Stop wearing contacts immediately: if you notice pain, light sensitivity, sudden blurry vision, unusual redness, discharge, or a feeling like something is stuck in your eye.
- Contact an eye care professional: if symptoms do not improve after removing the lenses, pain or redness gets worse, or your vision becomes blurry or cloudy.
How Often Should You Update Your Contact Lens Prescription?
Most people should have regular eye exams every 1–2 years, but contact lens wearers may need checkups sooner depending on comfort, eye health, lens type, and their optometrist’s advice.
You may need a new contact lens prescription sooner if you notice:
Frequent dryness: your lenses feel dry faster than usual.
Blurry vision: your contacts no longer give you clear, steady vision.
Headaches or eye strain: your current power may no longer be right.
Uncomfortable lenses: your lenses feel scratchy, tight, or irritating.
Red eyes after wearing contacts: this can be a sign your lenses, wearing time, or fit needs to be checked.
Lifestyle or health changes: more screen time, new medication, allergies, or health changes can affect how your lenses feel.
The simple rule: if your contacts no longer feel normal, do not keep reordering the same lenses without checking in with your optometrist.
Ordering Contacts Online in Canada: Safe Buyer Checklist
Before you buy contact lenses online, confirm the basics so you are not guessing at checkout.
Your contact lens prescription is current.
You have a contact lens prescription, not just a glasses prescription.
You are ordering the exact brand recommended for you.
The power, base curve, diameter, and quantity are correct.
You understand whether the lenses are daily, bi-weekly, monthly, or another replacement type.
You have the right cleaning solution if you use reusable lenses.
You know when to stop wearing your lenses and contact an eye care professional.
A quick check before ordering can save you from buying the wrong lenses and dealing with avoidable discomfort later.
Final Answer: Should You Have a Current Prescription Before Ordering Contacts Online?
Yes, you should order contact lenses online with a current contact lens prescription or contact lens record. It helps you choose the right power, brand, size, and replacement schedule instead of guessing or relying on old information.
Online ordering is convenient, but it should work alongside regular eye exams and professional fitting advice. Once you have the right details, ordering becomes much simpler.
At Fresh Lens, we offer a wide range of contact lenses, including dailies, weeklies, monthlies, coloured contacts, and other lens categories. If you already have your current lens details, you can shop confidently and choose the contacts that match your prescription and wearing needs.
Frequently Asked Questions
Do you need a prescription for contact lenses in Canada?
Yes. For safety, you should have a current contact lens prescription or contact lens record before ordering contacts in Canada. Contact lenses sit directly on the eye, so the correct power, fit, brand, and replacement schedule matter.
Can I use my glasses prescription to order contact lenses?
No, not safely. A glasses prescription does not usually include contact lens-specific details such as base curve, diameter, lens brand, or fitting information. You need a contact lens prescription or fitting record.
Do non-prescription coloured contacts need a prescription?
“Non-prescription” usually means the lenses have 0.00 vision correction, but they are still contact lenses. You should still get professional advice to make sure the lenses fit properly and are safe for your eyes.
Can I reorder contacts online from an old box?
You can use the old box to check lens details, but you should not rely on it if your prescription is expired or your eyes have changed. If your last exam or fitting was a long time ago, confirm your prescription before reordering.
What should I do if my contacts feel uncomfortable?
Remove them immediately. If you notice pain, redness, light sensitivity, blurry vision, or discharge, stop wearing the lenses and contact an eye care professional.
