SmartBuyGlasses is showing the 5% off contact lenses voucher at the top of this page as the lead offer, and it is best if you are ordering contact lenses totalling more than $100. The voucher must be entered at checkout and applies only to contact lens lines that are eligible under the site terms. If you are buying frames, high value eyewear or lens work, one of the fixed value or percentage offers lower down the page may suit a bigger basket.
Big orders of C$400 or more: Use the C$25 off designer eyewear over C$400 code if your cart meets that threshold, because it gives a straight C$25 saving on eligible designer items and lens upgrades. For example, on a C$500 order of designer glasses and lens upgrades the C$25 off brings the total to C$475, a saving of C$25. The 10% off lenses, upgrades and coatings code might save more if most of your C$400 plus spend is lens work rather than frames.
Medium designer purchases between C$200 and C$400: The C$10 off designer eyewear over C$200 code applies for eligible designer frames and upgrades. On a C$250 designer frame order, C$10 off reduces the total to C$240, a saving of C$10. Compare that to the C$25 code if your basket can reach C$400, and use whichever leaves the lower final total.
Contact lens orders over $100: The 5% off contact lenses voucher at the top is the one to enter for contact lens purchases that total more than $100. For example, on a $120 contact lens order the 5% off reduces the price to $114, a saving of $6. If your contact lens items are not in the eligible list, the voucher will not apply and you should check sale prices instead.
Buying lenses, upgrades or coatings only: The 10% off all lenses, upgrades and coatings code is the broad choice when you are paying mainly for lens work rather than frames. On $200 of lens upgrades, for example, 10% off reduces the price to $180, saving $20. If your basket mixes frames with lens work, test both the fixed C$10/C$25 codes and the 10% lenses code in your cart to see which gives the lower total.
Buying outlet eyeglasses or sale lines: Outlet items are marked up to 81% off on site and can already be cheaper than any code. If the frames you want are in the outlet, the sale price will often beat a small fixed discount or 5% off; apply no code and use the lower sale price when it appears in your basket.
First time customers and low spend carts: Signing up to the newsletter may give you access to future special offers, but it is not the page lead and it does not replace the active codes above. For small purchases under the vouchers’ minimums, the outlet sale prices are usually the best route.
Our records for the 12 months to October 2026 show 22 offers listed for SmartBuyGlasses on our site (21 codes and 1 sale). Percentage codes were common in that period, the biggest percent code was 75% off and the typical percent code was 10%. Our team ran 21 checkout tests across 21 offers in the 12 months to October 2026, with 10 screenshot records kept. The current 5% contact lens voucher is smaller than the typical 10% percent code historically, while the outlet sale reaching up to 81% off matches the biggest site sale we saw.
When deciding between the options that apply to your cart, pick whichever single code or the outlet price leaves the lower final total. Only one promo code is required at checkout, and no combination rule is stated for these offers, so enter the single code that reduces your final payment the most or rely on the outlet price if it is lower.
