Dual Strength Bifocal - The Card Shark
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$79.95
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Jazz – Multi-Size Oval Dual-Strength Bifocal Reading Glasses
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Jazz – Multi-Size Oval Dual-Strength Bifocal Reading Glasses
$79.95
How to Choose Your Strengths
Choosing your powers is easier than it sounds. Here’s a simple way to think about it:
Step 1 – Start with what you already wear.
If you use two pairs today — one for the computer and one for reading — those are the same two strengths you’ll use in your Dual-Strength lenses: computer power on top, reading power on the bottom.
If you currently wear just one pair of readers, use that strength as your bottom (reading) power.
Step 2 – Choose a milder power for the top.
The top of the lens is made for computer and mid-range (arm’s-length) vision, so it should be weaker than your reading strength — similar to your “computer pair” if you already use one.
Step 3 – Why the difference matters.
Dual-Strength lenses work best when the top is at least
1.00 diopter weaker than the bottom.
This creates a smooth, comfortable transition from computer distance to close-up reading — without eye strain.
Step 4 – Fine-tune for your daily habits.
If you spend more time on the computer than reading, choose a gentler top power for relaxed, sustained clarity.
Here are a few example combinations that follow the required 1.00 diopter difference and offer smooth dual-distance clarity:
| Your usual readers | Suggested top (computer) | Suggested bottom (reading) |
|---|---|---|
| +2.50 | +1.50 | +2.50 |
| +3.00 | +2.00 | +3.00 |
| +3.50 | +2.50 | +3.50 |
| +4.00 | +3.00 | +4.00 |
Dual-Strength Bifocals vs. Progressive Lenses
Progressive lenses may promise seamless vision, but for many readers, they come with trade-offs that affect comfort, safety, and cost.
Long adjustment period: Progressives often require weeks of adaptation and can cause dizziness, headaches, or eye strain.
Dual-Strength benefit: Two clearly defined zones mean little to no adjustment—your eyes know exactly where to look.
Reduced peripheral vision: The narrow vision corridor in progressives can limit side vision, which may feel unnatural or unsafe while walking or driving.
Dual-Strength benefit: Full peripheral clarity with no distortion or swim.
Higher cost: Progressives are often significantly more expensive due to complex lens technology.
Dual-Strength benefit: $79 with free shipping—clear, predictable pricing.
Frame limitations: Progressives require taller frames, reducing your style options.
Dual-Strength benefit: Over 40 frame styles in multiple sizes, colors, and shapes—no compromises.
Why Dual-Strength Bifocals Just Work
- • Two clearly defined magnification zones for natural, predictable vision
- • Comfortable clarity for reading, computer work, and everyday mid-distance
- • Designed for immediate comfort — no learning curve
- • Thoughtfully engineered for daily wear, all day long
We’ve been designing and perfecting reading glasses for over 30 years. Every Dual-Strength lens reflects decades of hands-on experience listening to customers, refining fit, and focusing on what truly makes glasses easy to wear.
You’ve chosen the frame style. Next, you’ll personalize your pair by selecting the frame color, frame width, and lens strengths that suit how you see and live.
Choose your color, width, and powers below to complete your pair ↓
- SKU:
- mo-jazz1dualbf
- Weight:
- 1.10 Ounces
Description
A versatile, lightweight metal reader available in multiple sizes to match every face width — from narrow to extra-wide.
Effortless Style with All-Day Clarity
Meet Jazz — a sleek, understated oval frame designed for anyone who wants comfort, flexibility, and polished everyday style. With smooth contours, adjustable nose pads, and a lightweight metal build, Jazz is made to fit naturally and look great on every face shape.
Whether you prefer a smaller profile or need an extra-wide fit, Jazz adapts beautifully.
Precision Lens Innovation for Seamless Everyday Use
Jazz features DebSpecs’ advanced dual-strength bifocal technology, offering smooth transitions between reading and mid-range vision.
Upper Zone (Computer / Intermediate Vision)
• Softer magnification ideal for screens, meetings, and everyday movement
• Keeps your eyes comfortable and relaxed
Lower Zone (Reading / Near Vision)
• Stronger magnification for crisp detail at close range
• Perfect for books, labels, manuals, crafting, and emails
No harsh line — just a clean, natural visual shift wherever your eyes go.
Lightweight Metal Construction with Adjustable Comfort
Durable, refined, and designed to fit every lifestyle.
• Slim, oval silhouette for a gentle, classic look
• Adjustable silicone nose pads for personalized comfort
• Lightweight metal frame suitable for long wear
• Flexible multi-size options for the perfect fit
• Smooth temple tips for added stability
A frame built to feel light, secure, and effortlessly wearable.
Fit & Measurements
Available Lens Widths: 52, 54, 56, 60 mm
Bridge: 18 mm
Available Temple Lengths: 140, 145, 150, 155 mm
Face Width Options:
• Narrow – 124 mm
• Average – 128 mm
• Wide – 132 mm
• X-Wide – 140 mm
Shape: Oval
Materials: Metal
The perfect customizable solution for anyone who needs precise sizing.
Available Colorways
Choose your best match:
• Black — clean, modern, and timeless
• Brown — warm, classic, and understated
• Gunmetal — sleek, neutral, and contemporary
Perfect For
• Unisex, everyday wear
• Readers who need custom sizing
• Work, commuting, or long sessions on digital screens
• Anyone who prefers a lightweight, minimalist frame
Why “Jazz” Is a Smart Upgrade
• Smooth no-line dual-strength bifocal lens design
• Multiple sizes for a truly personalized fit
• Lightweight metal construction for daily comfort
• Classic oval styling that flatters every face
• Reliable clarity for work, reading, and life
Shipping & Production Notes
Custom multi-size frames may require 3–5 business days before shipping.
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