Every pair of Specsly glasses includes lenses with anti-scratch and UV protection. Here is how to choose the right lens type and the upgrades worth paying for.
Lens types
| Lens type | Best for | Price |
|---|---|---|
| Non-prescription | Fashion frames, blue-light computer glasses with no correction | Included |
| Single vision | One prescription for distance or for reading | +$39 |
| Progressive (varifocal) | Distance, middle and near vision in one lens, usually from your 40s | +$129 |
| Readers | Close-up tasks when you only need magnification | +$29 |
Single vision
Single vision lenses correct one field of vision across the whole lens. They suit most people who are short-sighted (a minus SPH on your prescription) or long-sighted (a plus SPH), including those with astigmatism (a CYL value).
Progressive (varifocal)
Progressive lenses change power gradually from top to bottom: distance at the top, screens and dashboards in the middle, reading at the bottom. You will see an ADD value on your prescription if you need them. Most people adapt within one to two weeks.
Readers
Readers magnify close-up tasks such as reading, sewing or phone use. Choose these if your optometrist has prescribed reading-only glasses.
Lens upgrades
| Upgrade | What it does | Price |
|---|---|---|
| Anti-glare | Reduces reflections from lights and screens; clearer night driving | +$25 |
| Blue-light filter | Anti-glare plus filtering of some blue light from screens for more comfortable long sessions | +$45 |
| Thin & light 1.67 | Thinner, lighter lenses for prescriptions stronger than about ±4.00 | +$69 |
| Light-adaptive | Darkens in sunlight and clears indoors | +$89 |
Sunglass lenses
All sunglasses include 100% UV400 protection. Polarized lenses (+$35) cut glare off water, snow and wet roads, which makes them a good choice for driving and the outdoors. Polarized mirror (+$55) adds a reflective finish.