Try glasses on before you buy online: four ways to cut the risk
Buying glasses online is cheap to get wrong: a pair that looks right on a model can be too wide, sit too low or simply not suit you. You cannot hold every frame up to your face, but there are four ways to cut the guesswork before you pay, and each one answers a different question.
Try glasses on my photo — free
Four ways to try glasses before you buy
- Try the shape and width on a photo of your face. A virtual try-on answers "is this a shape I want to wear, at about the right size?" FitMyFace works on a phone or laptop with no account. It draws real frames at their listed width on your photo and flags ones that look clearly too wide or too narrow. The sizes are approximate. See how a free virtual glasses try-on works.
- Measure a pair you already own. If one pair fits well, the numbers printed inside an arm (for example 52-18-140) give you lens width, bridge width and arm length to match. What the numbers on glasses mean explains each one, and how to measure frame width shows how to check a total width with a ruler.
- Read the store's return and exchange terms first. Return windows, who pays shipping, and whether prescription lenses can be refunded differ from store to store and change over time. Read the current terms on the seller's own page before you check out, because a free preview cannot do that for you.
- Get a fitting in person for the fit-critical parts. Bridge height, how tight the arms feel and the pupillary distance for prescription lenses are things an optician measures. A selfie cannot.
What to check on the photo, and what to leave for later
- Check: overall width against the widest part of your face, whether the frame covers your eyebrows, and whether the shape repeats or balances your face. A round frame on a round face, for example, is a choice to test, not a rule.
- Leave for later: how heavy the frame feels, whether it slides down your nose, and the exact colour. If slipping is your main problem, tick "Glasses slide down my nose" after the scan so frames with nose pads or a low-bridge fit move up, and read glasses sliding down your nose.
Compare more than one store
One store's try-on only shows that store's range. FitMyFace shows frames from several stores on the same photo, which makes it easier to compare shapes and widths before you pick where to buy. It is a small catalogue, not the whole market, and prices and stock change, so confirm both on the seller's page. Compare glasses across stores covers that step.
A virtual try-on is a shopping aid, not an optician's fitting or an eye exam. Previews are approximate, so use them to narrow the choice and confirm the fit with an optician or the store. FitMyFace is for adults 18 and over and is not available in Illinois. The ordinary glasses fitting runs in your browser. The optional AI previews (hair and glasses) send a photo to Cloudflare; your consent is the one "I agree" on the scan screen, and a switch on the results turns them off.
Questions
Can I try on glasses online for free?
Yes. FitMyFace is free with no account: scan your face or pick a photo and flip through frames. Stores often have their own try-on tools for their own range, and many sell the frames you see there.
How accurate is an online glasses try-on?
It is approximate. It is good for ruling out frames that look clearly too wide or too narrow and for comparing shapes. It cannot confirm bridge fit, comfort or a prescription.
Do I still need an optician?
For prescription lenses, yes: your optician provides the pupillary distance and checks the fit. Use the preview to choose what to look at, not to skip that step.