Lens technology
How OptiReaders Pro lenses work: zones, materials, trade-offs
OptiReaders Pro lenses use a graduated power gradient split across three optical zones - distance, intermediate and reading - built into a single piece of lens material, mounted in a lightweight TR90 frame. Here is the geometry and the honest trade-offs behind it.
Official store pricing
1 Pair $29.99 · 2 Pairs $49.99 · 3 Pairs $69.99
Free shipping on 2+ pairs · 30-day money-back guarantee
Direct answer
Each lens carries a continuous power gradient rather than one fixed magnification: a near-neutral top zone for distance, a moderately boosted middle zone for a monitor at 50-70 cm (20-28 in), and full reading power at the bottom for print and phones at 30-40 cm (12-16 in). The frame is a flexible TR90 polymer built to keep that lens geometry sitting correctly on your face all day.
The three-zone layout
| Zone | Position on lens | Typical distance | Used for |
|---|---|---|---|
| Distance | Top | Beyond 90 cm (35 in) | Looking across a room, a face at the table |
| Intermediate | Middle | 50-70 cm (20-28 in) | Laptop and monitor screens |
| Reading | Bottom | 30-40 cm (12-16 in) | Books, phones, labels, menus |
How the power gradient works
Rather than a bonded segment that creates a visible line and an abrupt jump in power like a bifocal, the lens surface curves smoothly from top to bottom. Power increases gradually through the middle of the lens and reaches its full reading strength near the bottom. Because the transition is continuous, there is no line to see and no sudden jump to adjust to - just a smooth change you learn to navigate with head position, covered in detail on the adjustment guide.
Materials and coatings
- Lenses: impact-resistant optical-grade material, lighter than glass.
- Anti-scratch coating: reduces surface wear from cases, bags, and everyday handling.
- Anti-glare coating: cuts reflections from overhead lighting, screens, and headlights.
- Blue-light filter: reduces the harsher end of the light spectrum from phones and monitors.
- Frame: TR90 memory polymer, chosen because it flexes under pressure and returns to shape instead of cracking.
Setting up your lens use
- Position the frame high on the nose bridge so the zone boundaries line up with your natural eye level.
- Look through the top for anything across the room, without tilting your head back.
- Lower your chin slightly, not your eyes alone, to shift into the intermediate zone for a screen.
- Lower your chin further for reading print or a phone at close range.
- Stay near the center of each zone rather than the far left or right edge of the lens.
The optical trade-off nobody hides
Compressing three focal distances into one small lens means the correction is sharpest through the center of each zone and progressively softer toward the outer edges - this is true of every graduated lens, prescription or not. An optician-made progressive narrows this effect with a custom fit to your individual pupil position; a non-prescription lens uses a generalized layout that works well for most faces but cannot be personalized the same way. In practice this means a slightly narrower sweet spot than a custom pair, which most wearers stop noticing within days and a few never fully adjust to - which is what the 30-day money-back guarantee is there for.
Limits
This lens design corrects age-related near and mid-range blur (presbyopia); it does not correct astigmatism, a meaningful difference between your two eyes, or any distance prescription. If you notice sudden vision change, blur in one eye only, pain, or flashes and floaters, see an eye care professional rather than adjusting lens strength. For picking a power, see the strength guide, and for desk-specific setup, see using them for computer work.