Looking for blue‑light glasses that actually fit your face? This size‑first guide narrows OTRA’s lineup to confident picks for small, medium, and wider faces—backed by exact widths, bridge sizes, and lens heights—so you can work, scroll, and travel comfortably in the U.S. without guessing.
How we matched frames to face sizes
Fit starts with three numbers: total frame width, nose bridge (gap), and frame height. We compared these specs across OTRA’s most-loved blue‑light styles and paired each to the face sizes where they wear best. OTRA’s blue‑light lenses are typically tuned for indoor clarity using light Category 1 tints—ideal for offices, studios, coffee shops, and airport lounges—so you keep natural color and easy eye contact on screens. For a quick primer on what these lenses are designed to filter (and what they aren’t), see What blue-light lenses filter, and what they don't. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/lens-category-context-for-indoor-wear-cat-1-and-why-it-s-used
Size recommendations at a glance
Use this quick comparison to zero in on your best starting size. If you’re between sizes, match the total width to a pair you already love.
| Frame | Shape & vibe | Measured width | Best for | Tradeoffs |
|---|---|---|---|---|
| BLUE LIGHT – Frankie | Clean square; polished but unfussy | 138 mm / 5.4 in | Small to smaller‑medium faces; neat fit at narrow temples | Lower lens height; less wrap than rounder styles |
| BLUE LIGHT – Hazel | Thin cat‑eye; modern and minimal | 145 mm / 5.7 in | True medium to medium‑wide faces; soft lift on cheekbones | Angular points can read bold on very petite faces |
| BLUE LIGHT – Abby | Soft hexagon; geometric with warmth | 147 mm / 5.7 in | Wider faces or anyone who prefers a roomier, airier fit | Front may feel oversized on narrow faces |
Small faces: streamlined frames that don’t overwhelm
If standard frames feel wide or press into your cheeks, aim for a total width around 138–140 mm with crisp lines that won’t crowd your features. BLUE LIGHT – Frankie lists a 138 mm width, 35.9 mm height, and a 21 mm nose gap—numbers that sit close and stable on many petite faces. Frankie’s lens listing also specifies Category 1 for indoor‑first clarity. ([otraeyewear.com](https://www.otraeyewear.com/products/frankie-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
Why this works
- Proportion: Narrower total width tracks to petite facial widths, reducing temple gap.
- Stability: A 21 mm bridge helps the frame perch securely without sliding when you look down. ([otraeyewear.com](https://www.otraeyewear.com/products/frankie-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
- On‑screen ease: The lower lens height minimizes stray reflections. If you edit color or design, see real tests in Do blue‑light lenses change color on screens? Subtle shifts, real tests, and easy fixes. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/do-blue-light-lenses-change-color-rendering-on-screens-real-world-examples
- Caysee - Black/Smoke — Slim profile and short temples keep frames from touching cheeks while staying stable during movement.
Medium faces: balanced coverage for long desk days
Medium fits are the sweet spot for many U.S. readers. Look for ~142–146 mm widths and shapes that gently lift the face. BLUE LIGHT – Hazel measures 145 mm wide with a slim cat‑eye that reads refined on video calls and casual IRL. Its Product Detail Page confirms Category 1—great for bright, indoor settings from Austin co‑working spaces to NYC studios. ([otraeyewear.com](https://www.otraeyewear.com/products/hazel-blue-light?mc_gid=a8439d01-32de-5a43-bcc7-5cb239438841&mc_type=guide))
Why this works
- Visual lift: Cat‑eye angles subtly raise the eye line—useful when a webcam sits slightly above your monitor.
- Comfort for 9‑to‑5: A ~19 mm nose gap offers a secure perch for all‑day wear; if you’re tuning pressure points, see All‑Day Desk Comfort: Frame Balance, Nose Pads, and Hotspot Fixes.
- Indoor clarity: Cat.1 lenses keep interiors bright while softening harsh LEDs. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/lens-category-context-for-indoor-wear-cat-1-and-why-it-s-used
- Malia - Black/ Olive — Clean, medium‑width silhouette designed for long wear and polished video‑call presence.
- Grace - Dark Chocolate/ Brown — Classic medium proportions with subtle shaping that stays comfortable through long workdays.
Wider faces: room to breathe—without losing polish
Prefer space at the temples or have a broader facial width? Frames around 146–149 mm usually feel relaxed and intentional. BLUE LIGHT – Abby lists a 147 mm width with a 42.8 mm lens height and 24 mm bridge, so it sits open and airy while the soft‑edged hexagon keeps your silhouette crisp on camera. Note: Abby’s lens section lists “Blue Light”; always confirm exact lens category on the Product Detail Page. ([otraeyewear.com](https://www.otraeyewear.com/products/abby-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
Why this works
- Even pressure: A wider front plus a 24 mm bridge spreads contact points, reducing hotspots during long sessions. ([otraeyewear.com](https://www.otraeyewear.com/products/abby-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
- Shape control: Hexagonal edges add structure so the frame reads tailored, not oversized.
- From desk to weekend: Modern lines feel effortless for coworking, errands, or a quick flight.
- BLUE LIGHT - Abby — 147 mm width and a 24 mm bridge create an open, airy fit that avoids temple pinch on wider faces.
- Nash - Gold/ Light Brown — Wider front and relaxed temple spread give extra room without sacrificing a polished on‑camera look.
- Backstreet - Black — Generous frame width and rounded edges for comfortable wear across broader facial widths.
Confirm your size in 2 minutes (at home)
- Match a favorite pair: Measure total width hinge‑to‑hinge with a ruler. If that pair is ~138 mm, start with Frankie; ~145 mm, try Hazel; ~147 mm, Abby is likely right.
- Bridge feel: If glasses slip when you look down, try a smaller nose gap; if they pinch, size up slightly.
- Screen check: Open your laptop webcam and scan for reflections; a minor screen tilt and indirect lighting usually help. For color‑sensitive work, preview shifts in Do blue‑light lenses change color on screens? Subtle shifts, real tests, and easy fixes. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/do-blue-light-lenses-change-color-rendering-on-screens-real-world-examples
What OTRA’s blue‑light lenses do—and don’t
OTRA’s blue‑light lenses are built for digital life: light indoor tints that help temper intense screen‑emitted blue while keeping your space bright. They’re not a replacement for sun lenses outdoors. For a clear, brand‑level explainer, read What blue-light lenses filter, and what they don't. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/blue-light-filtering-basics-what-otra-filters-and-what-it-doesn-t
Care and longevity
- Clean daily: Use a microfiber cloth and lens spray; skip paper towels. For a quick, streak‑free routine, see Best Way to Clean Blue Light Glasses.
- Keep them close: If you move between rooms or commute, a lightweight chain can save drops and scratches—try the minimal Aurelia Sunglasses Chain or a softer look like the Sunglasses Cord with White Stones.
Fit notes by frame (from each Product Detail Page)
- Frankie: 138 mm front width; 21 mm nose gap; 35.9 mm frame height; square profile that sits close without cheek touch. Cat.1 indoor listing. ([otraeyewear.com](https://www.otraeyewear.com/products/frankie-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
- Hazel: 145 mm front width; 19 mm nose gap; 34.3 mm frame height; slim cat‑eye adds subtle lift and a bit more lateral coverage than a petite square. Cat.1 indoor listing. ([otraeyewear.com](https://www.otraeyewear.com/products/hazel-blue-light?mc_gid=a8439d01-32de-5a43-bcc7-5cb239438841&mc_type=guide))
- Abby: 147 mm front width; 24 mm nose gap; 42.8 mm frame height; soft hexagon balances width with crisp lines—ideal if you want space at the temples. Lens section shows “Blue Light”; confirm category on page. ([otraeyewear.com](https://www.otraeyewear.com/products/abby-blue-light?mc_gid=377e1294-4954-4854-9af4-e23ee0c542bf&mc_type=guide))
FAQ
- Are OTRA blue‑light lenses good for indoor work in the U.S.? Yes. Many styles use light Cat.1 tints that keep interiors bright and color‑true—great for offices, libraries, studios, and coffee shops from Los Angeles to New York. Always confirm the lens category on the Product Detail Page. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/lens-category-context-for-indoor-wear-cat-1-and-why-it-s-used
- Can I wear these outdoors? Blue‑light lenses are optimized for screens and interiors; for sun, choose UV400 sunglasses. For context on when each makes sense, read Blue‑Light vs. Sunglasses: Can One Pair Do Double Duty?.
- Do these lenses change on‑screen colors? Any shift is subtle with OTRA’s indoor‑first tuning; see controlled examples and easy tweaks in Do blue‑light lenses change color on screens? Subtle shifts, real tests, and easy fixes. ([otraeyewear.com](https://www.otraeyewear.com/blogs/blue-light-digital-life/do-blue-light-lenses-change-color-rendering-on-screens-real-world-examples
Next steps
Start with the frame width that mirrors a pair you already love, then pick the silhouette that matches your on‑camera vibe: square and polished (Frankie), minimal cat‑eye lift (Hazel), or roomy, modern geometry (Abby). If you’re new to blue‑light, get grounded with What blue-light lenses filter, and what they don't before you check out.
