Vision Express currently has the up to 50% off 2nd pair voucher at the top of this page, which is best if you are buying two pairs and want the cheaper pair at half price. That voucher applies online when you buy two eligible pairs and the 50% discount is taken from the cheaper pair. It is the lead option for two pair purchases.
If you are buying two pairs of equal value: use the up to 50% off 2nd pair voucher. For example, on two €120 pairs the original price is €240, the cheaper pair gets 50% off (€120 → €60), so your final total is €180 and you save €60. This voucher is the headline code and must be entered at checkout to apply; exclusions can remove some models.
If you are buying a single pair: the 25% off voucher is usually better. For a €150 pair, the original price is €150, the 25% off voucher reduces it by €37.50 to €112.50, so you save €37.50. The 20% off voucher also applies to single glasses, but its terms state it cannot be combined with other promotions and it saves less (on €150, 20% is €30). Use the 25% voucher if you have only one pair in your basket.
If your basket is around or above €100: compare the 25% voucher with the €10 off email sign up. For a €110 basket the original price is €110, the email signup takes €10 off to €100 (saving €10) while the 25% voucher gives €27.50 off to €82.50 (saving €27.50), so the 25% code wins. Remember the email signup discount requires a minimum order of €100 and cannot be combined with other discounts.
If you are a student or a contact lens subscriber: use the relevant in store student discount or the subscriber benefit. Students get 20% off eligible prescription eyewear and contact lenses in Irish stores on presentation of ID. Contact lens subscribers get 50% off glasses or sunglasses as a subscriber benefit by joining the in store subscription; this is a separate route that includes further clinical benefits and may be the best option if you plan regular lens orders.
If you shop during Black Friday (20 November to 1 December 2026): the advertised Black Friday offers may be deeper on specific products. Those sale amounts will be shown on the product pages during the promotion, and email subscribers can get early access.
Our records for the 12 months to November 2026 show 16 offers listed for Vision Express (4 percentage codes in that window, largest 50% and a typical code size of 25%), and our team ran 6 checkout tests across 5 offers in that period with 5 screenshots kept as proof. The 50% headline code matches the biggest percentage code we have seen in the year.
To choose, calculate the final total for your basket under each applicable offer and take whichever gives the lower price. Note one discount code per order applies, and the email sign up €10 off cannot be combined with other discounts; free shipping applies to all orders online subject to availability.