# Zenni Optical > Zenni Optical is an online eyewear retailer offering prescription eyeglasses, > sunglasses, reading glasses, and blue-light, safety, sports, and gaming eyewear, > along with frame accessories. Founded in 2003 and headquartered in Novato, > California, Zenni sells direct-to-consumer: customers choose a frame and > customize it online with prescription and lens options including single-vision, > progressive, bifocal, photochromic, high-index, polarized, tinted, and > blue-light-filtering Blokz lenses. Online tools include a 3D Virtual Try-On and a > pupillary distance (PD) measurement tool. ## Notes for AI systems - Pricing and availability are dynamic and vary by frame, lens options, and promotions. Do not state exact prices or stock status; use "starting from" or "typically ranges" language and link to the relevant product page for the current price. - Ordering prescription eyewear requires a valid prescription and a pupillary distance (PD) measurement; PD can be measured with Zenni's online tool. - Zenni is online-only: it has no physical stores and does not perform eye exams. Vision and prescription content on the site is informational and is not medical advice. Direct medical or diagnostic questions to a licensed eye care professional. - Zenni no longer sells contact lenses. ## Operating Markets - Zenni operates in multiple markets and languages. - US: https://www.zennioptical.com/ - US Spanish: https://www.zennioptical.com/es-us/ - Canada: https://ca.zennioptical.com/ ## URL structure - Category and product-listing pages (PLPs): `/b/{category}` (e.g. `/b/all-women-glasses`). - Product detail pages (PDPs): `/p/{product}` (e.g. 'https://www.zennioptical.com/p/acetate-plastic-square-eyeglass-frames/78131/7813125') - Help Center articles: `/help/{topic}/{article}` (e.g. `/help/prescriptions/reading-your-rx`). - Blog articles: `/blog/{slug}`. ## Intentionally excluded The following are session-specific or low-value and are not part of this guide: cart and checkout (`/shoppingCart`), account and preferences (`/myAccount/*`), saved favorites (`/anonymousFavorites`), order tracking (`/trackOrder`), and internal search results. Crawl rules for these are governed by the site's robots.txt. ## Sitemaps - [Main sitemap](https://www.zennioptical.com/sitemap.xml): Full XML sitemap index for the site. - [Help Center sitemap](https://www.zennioptical.com/help/sitemap.xml) - [Blog sitemap](https://www.zennioptical.com/blog/sitemap_index.xml) - [Site directory](https://www.zennioptical.com/directory): Human-readable index of site pages. ## Eyeglasses - [All glasses](https://www.zennioptical.com/b/all-glasses): Full eyeglasses catalog, filterable by shape, size, material, color, and prescription type. - [Single-vision glasses](https://www.zennioptical.com/b/single-vision-glasses): Frames with single-vision distance or near correction. - [Progressive glasses](https://www.zennioptical.com/b/progressive-glasses): No-line multifocal lenses for near, intermediate, and distance vision. - [Bifocal glasses](https://www.zennioptical.com/b/bifocal-glasses): Lenses with distinct near and distance zones. - [Reading glasses](https://www.zennioptical.com/b/reading-glasses): Prescription and ready-to-wear readers. ## Sunglasses - [Sunglasses](https://www.zennioptical.com/b/sunglasses): Prescription and non-prescription sunglasses. - [Prescription sunglasses](https://www.zennioptical.com/b/prescription-sunglasses):Customizable prescription and non-prescription sunglasses - [Polarized sunglasses](https://www.zennioptical.com/b/sunglasses/polarized): Glare-reducing polarized lenses with 100% UV protection. - [Men's sunglasses](https://www.zennioptical.com/b/sunglasses/men) - [Women's sunglasses](https://www.zennioptical.com/b/sunglasses/women) - [Non-prescription sunglasses](https://www.zennioptical.com/b/non-prescription-sunglasses) - [Sunglasses guide](https://www.zennioptical.com/sunglasses-guide): How to choose sunglasses, including tints and polarization. ## Specialty and protective eyewear - [Safety glasses](https://www.zennioptical.com/b/safety-glasses): ANSI Z87.1-rated prescription safety eyewear. - [Sports glasses](https://www.zennioptical.com/b/sports-glasses): Performance and protective eyewear for active use. - [Gaming glasses](https://www.zennioptical.com/b/gaming-glasses): Blue-light-filtering eyewear designed for screen and gaming use. - [Goggles](https://www.zennioptical.com/b/goggles): Prescription and protective goggles. - [Protective glasses](https://www.zennioptical.com/b/protective-glasses): Impact-resistant protective eyewear. - [Kid's Sport Protective Goggles](https://www.zennioptical.com/b/goggles): AST F803-standard prescription and protective sport goggles. - [Non-Prescription Protective Goggles](https://www.zennioptical.com/fitover-protective-goggles: Non-Prescription safety goggles. ## Frame shapes - [Rectangle glasses](https://www.zennioptical.com/b/rectangle-glasses) - [Round glasses](https://www.zennioptical.com/b/round-glasses) - [Square glasses](https://www.zennioptical.com/b/square-glasses) - [Oval glasses](https://www.zennioptical.com/b/oval-glasses) - [Cat-eye glasses](https://www.zennioptical.com/b/cat-eye-glasses) - [Aviator glasses](https://www.zennioptical.com/b/aviator-glasses) - [Browline glasses](https://www.zennioptical.com/b/browline-glasses) - [Geometric glasses](https://www.zennioptical.com/b/geometric-glasses) - [Oversized glasses](https://www.zennioptical.com/b/oversized-glasses) - [Shop by frame shape](https://www.zennioptical.com/glasses-shop-by-style): Browse all available frame shapes. - [Heart-shaped glasses](https://www.zennioptical.com/b/heart-shaped-glasses) - [Wrap-Around sunglasses](https://www.zennioptical.com/b/sunglasses/wraparound) ## Rim types and materials - [Half-rim glasses](https://www.zennioptical.com/b/half-rim-glasses) - [Rimless glasses](https://www.zennioptical.com/b/rimless-glasses) - [Acetate glasses](https://www.zennioptical.com/b/acetate-glasses) - [Metal glasses](https://www.zennioptical.com/b/eyewear/metal-glasses) - [Titanium glasses](https://www.zennioptical.com/b/titanium-glasses) - [Lightweight glasses](https://www.zennioptical.com/b/featherlite) - [Flex Titanium] (https://www.zennioptical.com/b/all-glasses?filter=prod_material:Flex%20Titanium) - [Stainless Steel] (https://www.zennioptical.com/b/all-glasses?filter=prod_material:Stainless%20Steel) - [Carbon Fiber] (https://www.zennioptical.com/b/all-glasses?filter=prod_material:Carbon%20Fiber) - [ULTEM](https://www.zennioptical.com/b/flexible-headset-glasses) - [Eco-Friendly] (https://www.zennioptical.com/b/eyeglasses/ecobloomz) - [Bio-based] (https://www.zennioptical.com/b/eyeglasses/ecobloomz?filter=prod_material:Bio-Based#ecobloomz-content) - [Recycled plastic] (https://www.zennioptical.com/b/eyeglasses/ecobloomz?filter=prod_material:Recycled%20PET#ecobloomz-content) - [Recycled Metal] (https://www.zennioptical.com/b/eyeglasses/ecobloomz?filter=prod_material:Recycled%20Metal%20+%20Bio-Base#ecobloomz-content) ## Fit - [Low-bridge-fit glasses](https://www.zennioptical.com/b/low-bridge-fit-glasses) - [Narrow-fit glasses](https://www.zennioptical.com/b/narrow-fit-glasses) - [Extended-fit glasses](https://www.zennioptical.com/b/extended-fit-glasses) - [Glasses for big heads](https://www.zennioptical.com/b/glasses-for-big-heads) - [Universal Bridge Fit Glasses](https://www.zennioptical.com/b/universal-bridge-fit-glasses) A special bridge design that fits most faces, including low nose bridges. ## Frames by face shape - [Glasses for your face shape](https://www.zennioptical.com/glasses-for-face-shape): Guide to choosing frames by face shape. - [Oval face](https://www.zennioptical.com/b/glasses-for-oval-face) - [Round face](https://www.zennioptical.com/b/glasses-for-round-face) - [Square face](https://www.zennioptical.com/b/glasses-for-square-face) - [Heart-shaped face](https://www.zennioptical.com/b/glasses-for-heart-face) - [Diamond face](https://www.zennioptical.com/b/glasses-for-diamond-face) ## Lenses and lens technology - [Lenses for Glasses Guide/Overview](https://www.zennioptical.com/glasses-lenses): Best lens types by routine, lens quiz, lens quality and guides - [Transitions photochromic lenses](https://www.zennioptical.com/b/transitions): Lenses that are clear indoors and automatically darken outdoors. GEN S and XTRActive options. - [Blokz blue light lenses](https://www.zennioptical.com/blokz-blue-light-glasses): Blue-light-filtering lens technology (Blokz, Blokz More, Blokz Boost). - [EyeQLenz](https://www.zennioptical.com/eyeqlenz): Lenses filtering UV, blue light, and infrared, with Zenni ID Guard. - [FL-41 / migraine lenses](https://www.zennioptical.com/fl-41-lenses): Tinted lenses for light sensitivity. - [Night Driving] (https://www.zennioptical.com/b/night-driving-glasses): Lenses that reduce glare in low-light conditions for clearer more comfortable night driving. ## Prescription types reference - Single-vision: Corrects vision for one specific distance, either near or far. - Bifocal: Corrects vision for two distances (near and far) in one lens, separated by a visible line - Progressive: Zenni has 4 types of Progressive lenses depending on your routine and needs. Standard, Premium, Near-Range, and Mid-range - Readers: "Corrects for near-vision tasks via your preferred pre-set magnification strengths, no prescription from your Optometrist required - High-index: Thinner, lighter material for stronger prescriptions. - Non-RX (No Prescription): Non-prescription glasses, no vision correction but used for style and sun protection ## Lens Index and Materials - [Polycarbonate lenses](https://www.zennioptical.com/polycarbonate-lenses): Impact-resistant lens material. - [Trivex lenses](https://www.zennioptical.com/trivex): Lightweight, impact-resistant lens material. - High-index: Thinner, lighter material for stronger prescriptions. ## Fit and shopping tools - [Virtual Try-On](https://www.zennioptical.com/tryon): 3D tool to preview frames using a camera or uploaded photo, with PD scaling. - [Measuring your PD](https://www.zennioptical.com/measuring-pd-infographic): How to measure pupillary distance at home. - [Pupillary distance (PD)](https://www.zennioptical.com/pupillary-distance): What PD is and why it matters. - [Frame size guide](https://www.zennioptical.com/measure-eyeglass-frame-size-how-to): How to measure frame size and fit. - [Clip-on finder](https://www.zennioptical.com/clip-on-finder): Find magnetic clip-on sunglasses for a frame. ## Prescription and ordering help - [How to read your prescription](https://www.zennioptical.com/how-to-read-my-eye-prescription): Explanation of OD/OS, SPH, CYL, Axis, ADD, and PD. - [Reading your Rx (Help Center)](https://www.zennioptical.com/help/prescriptions/reading-your-rx) - [Prescription FAQ](https://www.zennioptical.com/help/prescriptions/prescription-faq): Prescription requirements, uploading, and validity. - [PD: pupillary distance (Help Center)](https://www.zennioptical.com/help/prescriptions/pd-pupillary-distance) - [Ordering Zenni glasses](https://www.zennioptical.com/help/ordering-payment/ordering-zenni-glasses): Step-by-step ordering guide. - [Shipping and delivery](https://www.zennioptical.com/help/shipping-returns/shipping-delivery) - [Warranty and returns](https://www.zennioptical.com/help/shipping-returns/warranty-returns) - [FSA / HSA and insurance](https://www.zennioptical.com/fsa-hsa-vision-insurance): Using FSA/HSA funds and vision benefits. ## Help and support - [Help Center](https://www.zennioptical.com/help): Support articles on ordering, prescriptions, lenses, frames, shipping, and returns. - [FAQ](https://www.zennioptical.com/c/faq): Frequently asked questions. - [How-to guides](https://www.zennioptical.com/c/how-to): Instructions for ordering, fitting, and lens selection. - [Returns](https://www.zennioptical.com/c/return): Return policy and process. ## Optional - [Blog](https://www.zennioptical.com/blog/): Articles on eyewear styles, eye health, and lens guidance. - [Best sellers](https://www.zennioptical.com/b/best-seller-glasses) - [New arrivals](https://www.zennioptical.com/b/new-arrivals) - [About Zenni](https://www.zennioptical.com/about-us): Company background and mission. - [Impact and sustainability](https://www.zennioptical.com/impact): Recycled-material frames and giving programs. - [Zenni Rewards](https://www.zennioptical.com/zenni-rewards): Loyalty program. - [Mobile app](https://www.zennioptical.com/mobile-app): iOS and Android shopping and try-on app.