Dual Strength Bifocal - The Card Shark
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$79.95
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Fourth Street – Elegant Rectangle Dual-Strength Bifocal Reading Glasses
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Fourth Street – Elegant 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:
- en4023dualbf
- Weight:
- 1.10 Ounces
Description
Soft, feminine lines meet clear, seamless everyday vision.
Everyday Elegance with a Confident, Feminine Shape
Meet Fourth Street, a beautifully sculpted rectangular frame made for women who want classic sophistication with a touch of modern softness. Lightweight, easy to wear, and flattering on narrower face widths, Fourth Street is your stylish upgrade from ordinary readers—complete with the clarity-enhancing performance of premium dual-strength bifocal lenses.
Dual-Strength Bifocal Technology for Effortless Clarity
Move through your day without switching glasses. DebSpecs’ seamless dual-strength bifocal design supports natural, relaxed vision at every distance.
Upper Zone – Computer / Intermediate Vision
• Mild magnification for screens, conversations, and mid-range tasks
• Smooth, comfortable focus throughout the workday
Lower Zone – Reading / Near Vision
• Stronger magnification for books, labels, phones, and fine detail
• Crisp clarity exactly where you need it
No harsh cut lines—just fluid visual transitions.
Lightweight, Feminine Craftsmanship Designed for Comfort
• Softly contoured rectangular silhouette for a refined everyday look
• Lightweight plastic construction that feels gentle and balanced
• Smooth temples for all-day comfort
• A flattering frame for narrow face widths
Fit & Measurements
Lens Width: 53 mm
Bridge: 15 mm
Temple Length: 140 mm
Face Width: Narrow – 123 mm
Shape: Rectangle
Materials: Plastic
Target Customer: Female
Available Colorways
• Mink – subtle, warm, and beautifully neutral
• Mocha – rich, earthy, and polished
• Plum – soft, feminine, and quietly expressive
• Seafoam – cool, airy, and modern
Perfect For
• Women who want lightweight, feminine everyday readers
• Narrow face shapes needing a flattering, balanced fit
• Work, reading, home tasks, tablets, and multitasking
• A soft, elegant style without sacrificing clarity
Why "Fourth Street" Is a Smart Upgrade
• Soft feminine styling with versatile neutral tones
• Lightweight comfort for daily wear
• Premium seamless dual-strength bifocal clarity
• A confidence-boosting look for narrow widths
Shipping & Production Notes
Frames are checked, packed, and typically ship within 3–5 business days.
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