Prism

If your eye doctor has prescribed prism correction for your glasses, you’re in the right place! Ordering prism lenses is simple once you know a few key details. This guide will walk you through what’s available, what’s not, and how to get exactly what you need.

What Is Prism Correction?

• Prism correction is used in glasses to help align your eyes properly, often prescribed for conditions like double vision (diplopia) or eye muscle imbalances. The prism bends light before it enters the eye, so your brain receives a single, clear image.

Can I order prism lenses online?

• Yes! You can order prism lenses through our online store as long as you're selecting single vision prescription lenses and a compatible frame.

  • Choose a standard frame (avoid sports, safety, and premium sunglasses frames)

  • Select Single Vision lenses

  • Enter your PD (pupillary distance)

  • Enter your full prescription details

  • Add the prism values and base direction

• After entering your prescription and prism details, you can customize your lenses with options like:

  • Impact-resistant polycarbonate or Trivex

  • Tints for sunglasses

  • Anti-reflective, blue light, or UV-blocking coatings

Is Prism Correction Available for All Types of Glasses?

• Prism correction is available only with single vision lenses and standard frame styles. This combination ensures your lenses are crafted with the precision required for accurate alignment, giving you the best possible vision and comfort.

• Prism correction requires very precise lens alignment and customization, which means it’s not compatible with certain lens types or specialty frames. We do not offer prism correction for:

  • Multifocal lenses, such as progressives and bifocals, as well as Blokz® Plus Anti-Fatigue lenses, which use subtle magnification.

  • Non-prescription lenses and readers.

  • Specialty frames, including premium sunglasses, Zunnies sports frames, ASTM-rated sports goggles, ANSI safety glasses, and VR (Virtual Reality) lenses.

Prism Pro Tips

• Enter Your Prism Values Exactly as Prescribed:

  • Prism correction involves specific measurements, including the prism power and the base direction (up, down, in, or out). It’s essential to enter these exactly as your eye doctor wrote them to ensure your lenses provide the proper correction.

• Prism Correction Should Never Be Skipped:

  • If your prescription includes prism, it’s because your vision needs it to properly align your eyes and reduce symptoms like double vision, headaches, or eye strain. Even if you prefer a certain lens type or frame, do not exclude prism just to fit those preferences. Skipping the prism can lead to discomfort or ineffective vision correction.

• Know Your Pupillary Distance (PD):

  • PD is the distance between the centers of your pupils and is crucial for aligning your lenses and prism prescription correctly. Be sure to enter your PD accurately.

  • What if I don't know my PD?

    • Ask your eye care provider for your PD (this is the most accurate option, especially for prism prescriptions). If that’s not available, you can use our virtual online PD measurement tool.

• Double Check Your Order Before Finalizing:

  • Before completing your purchase, carefully review all prescription details, prism values, PD, and lens options to avoid any errors. Mistakes can lead to incorrect lenses and require reordering.