How to compare cheap online glasses properly
Start by building the same order with each retailer. Use the same prescription, lens type, coatings, thinning choice, tint choice and delivery method. If one retailer includes a basic lens and another adds it later, the comparison is not like for like until the checkout total is visible.
Costs that change the final price
- Prescription lens inclusion and whether single-vision lenses are standard.
- Anti-reflection coating, scratch resistance, UV protection and blue-light options.
- Lens thinning for stronger prescriptions.
- Delivery speed, tracked postage and remake or return postage.
- Discount code conditions, minimum spend and sale exclusions.
When cheap online glasses are a good fit
They are most useful for spare pairs, simple distance or reading glasses, buyers who know their frame measurements and orders where a slower delivery window is acceptable. They are less suitable when a prescription is complex, the glasses are urgently needed, or precise fitting support is important.
What to do before checkout
Read the prescription entry page slowly, check PD requirements, compare frame measurements with a pair you already own, and read the exact policy for prescription returns. Keep the order confirmation and prescription details somewhere easy to find.
Quick route
If your goal is the lowest safe basket, read the under-£20 checklist first, then compare against the full retailer shortlist.
Read under £20 checklist