Lenses, not just frames
Eyewear
UV400, polarization, face shapes, and why a dark lens with no UV rating is worse than none.
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UV400 Explained: What the Stamp on Sunglasses Actually Means
UV400 means the lens blocks light down to 400 nanometres — UVA and UVB. Darkness is not the feature. A $15 pair can pass. A $300 pair can fail.
7 min · UV400 explained
Are Blue Light Glasses Worth It?
The evidence for daytime clear blue-light glasses is weak for strain and weaker for sleep. Night mode and amber glasses at night do more than an $80 clear pair at noon.
7 min · are blue light glasses worth itBest Sunglasses for Round Faces
Add angles. Avoid another circle. The frame should be as wide as the cheek, or a hair wider — not perched like a second head.
6 min · best sunglasses for round facesAcetate vs Metal Glasses Frames
Cellulose acetate is a thick, tunable plastic. Stainless and titanium are thin, adjustable, and sometimes a nickel problem. Heat, weight, and the hinge decide the winner, not prestige.
7 min · acetate vs metal glasses framesBest Sunglasses for Square Faces
A square face already has angles. The frame should add a curve, not another box.
6 min · best sunglasses for square facesBest Sunglasses for Oval Faces
Oval is the easy face. Most shapes work. The failure is a frame that is narrower than the cheek, or so huge it turns a balanced head into a billboard.
6 min · best sunglasses for oval facesAll eyewear guides
- Polarized vs UV Protection Sunglasses: They Are Not the Same7 min
- UV400 Explained: What the Stamp on Sunglasses Actually Means7 min
- Are Blue Light Glasses Worth It?7 min
- Best Sunglasses for Round Faces6 min
- Acetate vs Metal Glasses Frames7 min
- Best Sunglasses for Square Faces6 min
- Best Sunglasses for Oval Faces6 min
- Best Sunglasses for Heart-Shaped Faces6 min
- Best Sunglasses for Oblong Faces6 min
- Best Sunglasses for Diamond Faces6 min
- Aviator vs Wayfarer: Which Sunglass Shape First6 min
- Who Cat-Eye Sunglasses Actually Suit6 min
- Who Round Sunglasses Actually Suit6 min
- Are Transition Lenses Worth It?6 min
- Photochromic Lenses vs a Separate Sunglass Pair6 min
- Prescription Sunglasses vs Clip-Ons6 min
- How to Choose Progressive Lenses6 min
- Single Vision vs Progressive Lenses6 min
- Is UV400 Enough, or Do You Need More?6 min
- Why Polarized Sunglasses Black Out Phone Screens6 min
- Mirrored Sunglass Lenses: Pros and Cons6 min
- When Gradient Sunglass Lenses Are Worth Buying6 min
- Glass vs Polycarbonate Lenses6 min
- Trivex vs Polycarbonate Lenses6 min
- High-Index Lenses Explained6 min
- Is Anti-Reflective Coating Worth It?6 min
- How to Clean Glasses Without Scratching Them6 min
- How to Adjust Glasses at Home6 min
- Temple Length on Glasses, Explained6 min
- Bridge Fit on Glasses: Why Pairs Slide6 min
- Nose Pads vs a Saddle Bridge6 min
- How to Care for Acetate Glasses6 min
- How to Store Sunglasses So They Last6 min
- The UV Risk of Cheap Sunglasses6 min
- Sports Sunglasses vs Fashion Sunglasses6 min
- Wrap Sunglasses and the UV You Still Miss6 min
- Are Clip-On Sunglasses Worth It?6 min
- Best Sunglasses for Driving6 min
- Night Driving Glasses: The Yellow-Lens Myth6 min
- Do Yellow Lens Glasses Actually Work?6 min
- Best Sunglasses for Small Faces6 min
- Best Sunglasses for Large Faces6 min
- Titanium vs Beta-Titanium Frames6 min
- Are Flex Hinges Worth It?6 min
- How Often to Replace Glasses6 min
- How to Measure PD at Home6 min
- How to Buy Glasses Online Without a Bad Fit6 min
- Blue Light Glasses for Sleep: What Actually Helps6 min
- Kids Sunglasses and UV: What to Buy6 min
- Blue-Light Filters in Sunglasses: Marketing vs Light6 min
- Best Sunglasses for Round Faces and Small Noses6 min
- Bifocal vs Progressive Lenses: The Honest Split6 min