Dual Strength Bifocal - The Card Shark
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$79.95
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Thaw – Narrow-Fit Rectangle Dual-Strength Bifocal Reading Glasses
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Thaw – Narrow-Fit Rectangle 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-thawdualbf
- Weight:
- 1.10 Ounces
Description
Effortless, dual-strength bifocal clarity in a fresh, lightweight rectangular silhouette.
A Modern Classic for Sharp Minds
Meet Thaw — the airy, modern frame created for readers who love clean lines, soft color pairings, and a bright, uplifting aesthetic. Designed with narrow proportions for a more tailored fit, Thaw feels light, balanced, and instantly confidence-boosting. Whether you're reading, working, or on the go, it lends a refreshing touch to your daily routine.
Precision Lens Innovation for Seamless Everyday Use
Thaw uses DebSpecs’ dual-strength bifocal technology — made for multitaskers who move between digital screens and close-up detail work.
Upper Zone (Computer / Intermediate Vision)
• Softer magnification for screens, conversations, and mid-range tasks
• Reduces eye strain during extended digital viewing
Lower Zone (Reading / Near Vision)
• Stronger magnification for crisp, precise detail
• Ideal for books, journals, labels, menus, crafting, and hands-on hobbies
There’s no harsh dividing line — only smooth, natural transitions for effortless clarity all day.
Crafted with Lightweight Plastic Precision
A frame designed for comfort, softness, and subtle style.
• Ultra-light plastic construction for easy all-day wear
• Slim temples that sit comfortably behind the ears
• Crystal-and-matte color pairings for a clean, modern look
• Narrow rectangular silhouette flattering for smaller facial proportions
Bright. Lightweight. Comfortably minimal.
Fit & Measurements
Lens width: 50 mm
Bridge: 20 mm
Temple length: 145 mm
Face width: Narrow – 122 mm
A compact, narrow-fit rectangular shape crafted for slimmer face widths.
Available Colorways
Choose the finish that best suits your style:
• Blue Crystal / Navy Matte — cool, refreshing, and modern
• Crystal / Black Matte — clean, crisp, and effortlessly versatile
• Pink Crystal / Rose Matte — soft, uplifting, and beautifully feminine
Perfect for Every Setting
• Digital work and computer sessions
• Daily reading and close-up tasks
• Coffee shops, commutes, and travel days
• Crafting, journaling, and creative hobbies
• Everyday wear — from soft minimalism to polished casual looks
Thaw adapts seamlessly to every part of your day.
Why “Thaw” Is a Smart Upgrade
• Dual-strength bifocal clarity for multitasking
• Narrow-fit rectangular design for smaller faces
• Lightweight, comfortable construction
• Fresh crystal + matte color combinations
• Soft, modern look that enhances any wardrobe
• Dependable clarity with breezy, all-day wear
Shipping & Production Notes
Practical details: Due to the nature of these custom lenses, they typically ship within 3–5 business days.
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