Bifocal de Doble Resistencia - El As de la Baraja

$139.95 $89.95

Se envía en 4-5 días hábiles (producción de laboratorio personalizada).

Deje de alternar entre dos pares de gafas de lectura

Las lentes de doble graduación le permiten leer de cerca y ver con claridad a la distancia de un brazo, sin cambiar de gafas.

  • Dos zonas de visión en un solo par
  • Diseñadas para una comodidad de lectura prolongada
  • Disponibles en graduaciones precisas

How to Choose Your Strengths

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: computer power on top, reading power on the bottom. If you wear just one pair, use that strength as your bottom (reading) power.
Step 2 – Choose a milder power for the top. The top of the lens is for computer and mid-range (arm's-length) vision, so it should be weaker than your reading strength.
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.
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
$139.95 $89.95
Buy One Dual Bifocal Get 25% Off 2nd Pair
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Visión diaria con una ventaja competitiva
Conoce The Card Shark, una elegante montura rectangular diseñada para lectores que aprecian las líneas limpias, los ángulos modernos y la comodidad práctica. Con su tamaño versátil y construcción liviana, esta montura aporta un toque profesional a tu rutina de lectura diaria. Ya sea que estés revisando documentos, realizando múltiples tareas en el trabajo o disfrutando de tu libro favorito, este diseño ofrece claridad y estilo en igual medida.

Claridad sin interrupciones con tecnología bifocal de doble potencia
Las lentes bifocales de doble potencia de DebSpecs facilitan el cambio entre tareas.

Zona superior: visión intermedia/de pantalla
• Mayor aumento para uso de computadora, reuniones y visión a media distancia.
• Reduce la fatiga visual durante el uso prolongado de pantallas.

Zona inferior: visión de cerca/de lectura
• Mayor aumento para una claridad de cerca.
• Ideal para leer, manualidades, detalles finos, etiquetas y papeleo.
Transiciones suaves: sin línea visible, sin interrupciones.

Plástico ligero con comodidad diaria
• Elegante silueta rectangular para una versatilidad moderna.
• Montura de plástico ligera adecuada para largas horas de uso.
• Diseño de patillas cómodo para un ajuste seguro y estable.
• Disponible en dos opciones de tamaño para adaptarse a más anchos de cara.

Ajuste y medidas
Ancho de la lente: 53 mm o 56 mm
Puente: 17 mm
Longitud de la patilla: 140 mm o 145 mm
Ancho de la cara:
• Promedio: 125 mm
• Ancho: 131 mm

Garantía de confort de 45 días: Si la talla o la fuerza no son las adecuadas, te las cambiamos gratis.

Con gusto reembolsaremos cualquier devolución que tenga matasellos de envío dentro de los 30 días posteriores a la fecha de compra original.

Después de 30 días, emitiremos un crédito de la tienda. Tenga en cuenta: Independientemente del tiempo, las devoluciones de lentes personalizados de calidad óptica incurrirán en una tarifa de reabastecimiento del 15%

Pagar con

  • Generic

Su transacción está protegida con medidas de seguridad avanzadas para mantener su información confidencial

DebSpecs Shelby Main eyewear
$139.95 $89.95
$139.95 $89.95

Por qué los lectores tradicionales se quedan cortos

La mayoría de los lectores están diseñados para una distancia, la vida real no lo está

No puedes verlo todo con claridad al mismo tiempo

Tu libro es nítido, pero tu pantalla no lo es.

Por qué ocurre: Los lectores tradicionales se enfocan a una única distancia fija.
Resultado: Te inclinas hacia adelante, ladeas la cabeza o te ajustas constantemente.

No dejas de cambiar de gafas

Encender. Apagar. Cambiar pares. Repetir.

Por qué ocurre: Las lentes estándar no están hechas para la forma en que las personas se mueven entre tareas.
Resultado: Ahora usas dos pares de gafas de lectura para navegar tu día.

Tus ojos se cansan demasiado pronto

Por la tarde, tus ojos se sienten cansados.

Por qué ocurre: Tus ojos se esfuerzan cuando los lentes no coinciden con las distancias de trabajo reales.
Resultado: Fatiga, tensión y menor comodidad.





Diseñado a medida en colaboración con ópticos experimentados, para adaptarse a la forma en que realmente usas tu visión.

Switch Tasks, Not Glasses — How It Works

¿Me servirán?

Perfect for you if:

  • You read, scroll, and look up throughout the day
  • You switch between phone, laptop, and conversation
  • You want predictable clarity without progressive distortion

Not ideal if:

  • You want full-distance prescription lenses
  • You rarely switch focal ranges
  • You already love your progressives

No todas las gafas de lectura son iguales

DebSpecs Readers Drugstore Readers
Dual-Strength Viewing ✅ Near + Intermediate vision ❌ Single distance only
Optical Clarity ✅ Distortion-free lenses ⚠️ Blurry edges & warping
Comfort Fit ✅ Spring hinges + balanced weight ❌ Pinch or slide
Strength Accuracy ✅ Precisely calibrated lenses ⚠️ Often inconsistent
All-Day Wear ✅ Designed for extended reading ❌ Meant for quick use
Durability ✅ Reinforced frames ❌ Easily break or loosen
Style ✅ Designed for real life & confidence ❌ Disposable look
Eye Comfort ✅ Reduced strain & fatigue ❌ Eyes work harder
Cost Over Time ✅ One pair lasts months/years ❌ Replace repeatedly

Preguntas frecuentes

Los lectores de doble graduación utilizan dos zonas de aumento en una sola lente: una potencia más suave en la parte superior para ordenador y distancias medias, y una potencia más fuerte en la parte inferior para lectura de cerca.

Sí. Cada par se fabrica bajo pedido utilizando las potencias de aumento superior e inferior exactas que usted elija.

Para muchos clientes, sí. Los lentes Dual-Strength ofrecen zonas claramente definidas para que pueda pasar de tareas de computadora a tareas de lectura sin cambiar de par.

Si algo no se siente bien, generalmente es un pequeño ajuste a la potencia superior. Nuestro equipo puede ayudarte a afinar tu selección.



Sí, están diseñadas para la lectura prolongada y el uso de la computadora sin necesidad de cambiar constantemente.





Verás un plazo estimado de entrega al finalizar la compra, y los detalles de seguimiento se enviarán por correo electrónico una vez que tu pedido sea enviado.

  • 5 stars: 8 (73%)
  • 4 stars: 3 (27%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Kelly Webster
Dual Strength Bifocal - The Card Shark

I would give these a 5 star rating except for one thing, and it's no ones fault. I need a 1.5 on top and a 2.75 on bottom, but no one seems to make that. So I got a 1.5 on top and a 2.5 on bottom, and unfortunately the .5 difference is very noticeable. Otherwise I really love these glasses. They're stylish and well made. Shipping was earlier than expected and the case included is great. If I can ever find someone to do a 1.5/2.75 I will gladly give them 5+ stars.

A
Angelia Majewski
Dual bifocal readers

I think if more people knew about these they would love them. They help my computer and also my paperwork become clear. I use a lower strength on the top and higher on lower and it works wonderfully

s
shelby lacouture
Fantastic!

I'm an electrical engineer and spend much of my time switching my gaze between a large monitor and reading material on my desk, and since I am far-sighted, this means switching between two different strength reading glasses. For quite some time now I've looked for readers with different magnifications to no avail. I've tried progressives which have a very small field of view (an extreme case of foveated view), and can not tolerate this. I don't remember how I stumbled on these card sharks, but I'm very glad I did; these are worth their weight in gold to me; no more swapping glasses repeatedly. Quality is fantastic as well. Good job Debbie Burke!!

R
Ralph Blair
Dual Strength Bifocal

I spend a lot of time on computer while doing paperwork, Dual strength bifocals allowed me to stop having to switch glasses each time i went from cpu screen to paper documents. Great product that met my needs.

E
Edward Luczak
Perfect for my needs

I am constantly struggling with the need for 2 different OTC readers. One for close up and one for my computer. My optometrist could only supply these with plain glass at the top and the 2 reading powers sharing the bottom half of the frame. Gave me headaches as the area I had to focus on was very thin. After much searching I found these. The Card Shark Dual Strength Bifocal is perfect. Top half is for reading my computer, the bottom half is for papers or phone or similar. So glad I found them. No more carrying around multiple reading glasses.

the lens is of good quality, the frames are solid and the wider frame fits me head perfectly not leaaving me with imprints along my temple. These are a must have is you want simples dual power readers.

G
Guy Keith Farrar
dual strength bifocal

These glasses are great!! They provide a clear vision for both powers. The quality is excellent.

M
Mike G
perfect for work at home

Just what I needed. Works perfectly. Now I don't have to switch between glasses .

D
DRH
Nice glasses for folks who feel....

Nice glasses for folks who feel cheated when they go to the fancy eye places. These work well. with good optical quality. My only suggestion would be for a little less yellow intensity on the tint option.

M
MKG
works for me

Works for me. Perfect for working at my computer. I got the 1.50/2.50. I just wish there was an extra wide option.

T
Todd
Work great

I don't need two different strengh glasses, one pair for reading computer screen and reading close up for books etc. Really like them.

D
DWP
Great but did not work for me. Your milage may vary. Worth a look.

These are just want I needed post-cataract surgery. The folks here were helpful and shipping was fast. Sadly, the placement of the bifocal insert was just too low for my needs and I found myself looking through the top line much of the time. This will vary by individual so it may work fine for you. It is worth trying out! And the refund was swift and easy! Cheers