Knowledge - Extra-Wide Rectangle Dual-Strength Bifocal Reading Glasses with Acetate Frame

Stop switching between two pairs of reading glasses.

Experience vision that adapts to your day with Debby Burk Optical's Dual-Strength / Dual-Power bifocal design, created for people who shift between tasks without slowing down. Knowledge pairs an extra-wide rectangle acetate frame with rich, layered color options, bringing a bold, refined look to reading, screen work, and everything in between.

Seamless Clarity with Dual-Strength Bifocal Technology

Debby Burk Optical dual-strength bifocal lenses make shifting between tasks effortless.

Upper Zone, Intermediate / Screen Vision

• Softer magnification for computer use, meetings, and mid-range viewing
• Reduces eye fatigue during extended screen time

Lower Zone, Near / Reading Vision

• Stronger magnification for up-close clarity
• Ideal for reading, crafting, fine details, labels, and paperwork

Smooth transitions, no visible line, no interruptions.

Premium Acetate with Everyday Comfort

• Extra-wide rectangle silhouette with a low-profile lens height
• Durable acetate frame suitable for long hours of wear
• Comfortable temple design for a secure, stable fit
• Rich, layered colorways for a refined, distinctive look

Fit & Measurements

• Eye Size: 51 mm (2.01 in)
• Bridge: 17 mm (0.67 in)
• Temple: 140 mm (5.51 in)
• Frame Height: 36 mm (1.42 in)
• Frame Width: 124 mm (4.88 in)

An extra-wide, everyday fit for men who want dual-strength convenience in a premium acetate frame.

Color Options

• Black Matte: Classic, bold, and effortlessly refined for any setting.
• Crystal / Tortoise Matte: A layered two-tone finish with a warm, textured edge.
• Gray Matte / Black: Cool-toned and understated, with a sharp modern edge.

Choosing Your Strength

Start with the readers you already wear as your bottom (reading) power, then choose a milder top power for computer and mid-range vision, ideally at least 1.00 diopter weaker than the bottom, for a smooth, comfortable transition without eye strain. If you spend more time on screens than reading, lean toward a gentler top power.

Where Knowledge Works Best

• Anyone who currently juggles two pairs of readers, one for the computer, one for close work
• Desk work that shifts constantly between screen and paper
• Reading, crafting, fine print, and detailed paperwork
• Anyone who found progressives too narrow a field of view
• Men who want an extra-wide frame with dual-strength convenience

Why Men Upgrade to Knowledge

• Two magnification zones in one lens, no more swapping glasses
• No visible line, no distortion, just a smooth transition between zones
• Extra-wide rectangle shape with a low-profile height
• Premium acetate construction with layered colorways
• Custom-made to your exact top and bottom strength
• Reinforced, spring-hinge construction built for all-day wear

Shipping & Production

Each pair is custom made to your exact top and bottom strength, then individually inspected. Orders typically ship within 4-5 business days.