Sizing and fit
OptiReaders Pro sizing and fit: measurements and adjustment
OptiReaders Pro ships in one unisex frame size. This page gives the exact dimensions, how to check your own face width against them, and how to fine-tune the nose bridge and temples so the fit feels custom.
Official store pricing
1 Pair $29.99 · 2 Pairs $49.99 · 3 Pairs $69.99
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Direct answer: one size, built to fit most adult faces
OptiReaders Pro is made in a single unisex frame at roughly 13.8 cm (5.4 in) wide, 4.3 cm (1.7 in) lens height and 14.2 cm (5.6 in) temple length, weighing about 22 g. That covers the large majority of adult face widths without a size chart to navigate - the parts you can tune are the nose-bridge fit and the temple curve behind the ears.
Frame dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Total frame width | ~138 mm | ~5.4 in |
| Lens width | ~52 mm | ~2.0 in |
| Lens height | ~43 mm | ~1.7 in |
| Bridge width | ~18 mm | ~0.7 in |
| Temple length | ~142 mm | ~5.6 in |
| Weight | ~22 g | ~0.78 oz |
Check your own face width first
- Take a pair of glasses or sunglasses you already wear comfortably.
- Measure hinge to hinge across the front with a ruler.
- If that number falls between 125 mm and 145 mm (4.9-5.7 in), the standard OptiReaders Pro width will suit you.
- No glasses on hand? Measure straight across your face at eye level, outer corner of one eye to the other, and add about 20 mm for frame overhang on each side.
- If your number is well outside that range, expect the fit to sit slightly loose or slightly tight rather than wrong - the temple adjustment below still helps.
Nose bridge fit
The nose pads are moulded directly into the TR90 bridge rather than mounted on adjustable wires, which is deliberate: nothing to bend crooked, nothing to snap off in a bag. The trade-off is that the bridge fit cannot be widened or narrowed by hand. For most nose shapes the moulded curve sits evenly without pinching; if it consistently slides down your nose, the fix is usually a temple adjustment rather than the bridge, since a looser temple curve lets the whole frame drift forward.
Adjusting the temples at home
TR90 is a memory polymer, so it tolerates gentle heat-assisted bending far better than rigid acetate. If the arms grip too hard behind your ears or the frame feels loose and slides down your nose, try this:
- Warm just the curved tip of one temple arm with a hairdryer on its lowest heat setting for 10-15 seconds, holding it 15 cm (6 in) away.
- While still warm, gently widen (for a tight fit) or tighten (for a loose fit) the curve with your fingers.
- Hold the new shape for 20-30 seconds while it cools, then try the fit.
- Repeat on the other side to keep both arms symmetrical.
- Make small changes and re-test rather than one large bend - TR90 flexes back readily, so it is easy to overcorrect.
Who the frame suits - and who it does not
The single unisex width fits the majority of adult faces well, but it is not a fit for children, and a very wide or very narrow face may notice the frame sits slightly loose or slightly snug at the temple hinge rather than the bridge. That is a comfort difference, not a vision one - the lens optics work the same regardless of how the frame sits, though a frame that slides can shift the reading zone away from where your eyes expect it. If fit still feels off after the heat-adjustment steps, our 30-day return policy applies to fit as much as to power.
Style notes
The shape is a softened rectangle designed to read as ordinary glasses rather than "reading glasses," which is why it works equally for a desk pair and a going-out pair. See OptiReaders Pro for men and women for guidance on styling the same frame differently, and the full product breakdown for lens and coating details. Ready to order once the fit checks out? See current bundle pricing.