An Expert's Guide to Choosing Your Eyeglass Lenses

From Prescription Type to Lens Upgrades, We'll Make It Simple

You’ve hand-picked the perfect frame—now it's time for the most important part: the lenses.

This can feel like the most technical step, but as SF-based eyewear experts with over 20+ years of experience, our job is to make it simple.

The great news: Every frame we sell includes free, high-quality clear single-vision lenses. This guide will help you understand all the powerful upgrades you can choose to perfectly match your vision and lifestyle.


 

Part 1: Your Prescription Type (The "How You See")

 

This is the non-negotiable first step, based on your doctor's prescription.

  • Single Vision This is the most common lens. It's a single, all-purpose lens designed to correct for one field of vision—either Distance (for driving, watching TV) or Reading (for close-up tasks).

    • Included for free in all of our eyeglasses.

  • Bifocals These lenses correct for both distance and reading in one. They have a visible, D-shaped or round line on the bottom half of the lens that holds the reading power.

  • Progressives (No-Line Bifocals) This is the modern, premium solution for multifocal vision. Progressives offer a smooth, seamless transition between distance, intermediate (computer), and reading zones with no visible line. They look just like a single-vision lens and are our top recommendation for anyone who needs multifocal correction.


 

Part 2: Your Lens Material (The "Fit & Feel")

 

The material determines your lens's weight, thickness, and durability.

  • Standard 1.56 Index (Our Free Lens) This high-quality material is perfect for most common, mild-to-moderate prescriptions and is included for free.

  • Polycarbonate (Impact-Resistant) This is our "tough" lens. It's significantly lighter and more impact-resistant than standard plastic, making it the perfect choice for kids, sports, or safety. It is required for all rimless and half-rim frames.

  • High-Index (Thinner & Lighter) If you have a stronger prescription (typically over ±4.00 SPH), a high-index lens (like 1.61, 1.67, or 1.74) is a fantastic upgrade. This premium material is designed to be thinner, lighter, and more attractive, reducing that "coke bottle" look.


 

Part 3: Your Lens Upgrades (The "Lifestyle")

 

This is where you customize your lenses for your daily life.

  • Photochromic (Transition) Lenses This is the ultimate 2-in-1 convenience. These lenses are clear indoors and automatically darken to become sunglasses when you step outside.

  • Blue Light Filtering A must-have for the modern world. This special coating filters out harsh blue light from digital screens (computers, phones) to help reduce digital eye strain and improve sleep.

  • Tints & Polarization (for Sunglasses) Want to turn your favorite frame into prescription sunglasses?

    • Standard Tint: A permanent, non-polarized tint (solid or gradient) for sun protection.

    • Polarized Tint: A high-performance upgrade that eliminates harsh, reflective glare from roads, water, and snow. This is our #1 expert recommendation for driving and outdoor activities.


 

Still Not Sure? That's What We're Here For.

 

Lenses are complicated, but you don't have to be the expert—we are. As a passionate, SF-based small business, our greatest value is our support. If you're confused by your prescription or not sure which lens is for you, just ask.

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