Order online, collect at Halden Optical. Collection is free at all three salons.

Fit guide

Three numbers decide whether a frame fits

Every frame carries its size inside the left temple, written as lens width, bridge and temple length. Learn to read it and you can buy with confidence, online or at the counter.

A frame seen from the front, with lens width, bridge and temple markedABC
A frame stamped 50-21-145 has a 50 mm lens, a 21 mm bridge and 145 mm temples.

Measure at home

Read the pair you already wear

The fastest route to the right size is the frame on your face right now.

  1. Step one

    Take off your glasses and look inside the left temple. You will find three numbers, often separated by a small square or a dash.

  2. Step two

    If nothing is printed, lay the frame flat and measure one lens across its widest point with a ruler, then the gap between the lenses.

  3. Step three

    Stay within two millimetres of those numbers. Bring the old pair in and we read it off for you while you wait.

Width

Three bands, taken from the sizes we cut

Each band links to the frames that exist in those sizes, not to a guess.

Low-bridge fit

If your frames slide down, rest on your cheeks or leave the lashes brushing the lens, the bridge sits too high for your nose rather than too wide. The low-bridge frames have a shallower bridge, deeper pads and slightly wider temples, so the weight stays where it belongs.

See low-bridge frames

Still unsure

Bring your prescription or your old pair to any of the three salons. We measure your pupil distance, try the shapes you like in the right width, and adjust whatever you take home for as long as you own it.

Find a salon