Align the starting end of the ruler with the one side of the frame at the outer edge of the lens, then measure the distance to the outer edge at the other side of the frame. The bridge length can be measured in a similar way.
discover which size and shape looks best on you. Once you find your favorite frames, use ourlens index guideto help you decide which lenses to get. At Eyebuydirect, we offer14-Day Free Returnsand 365-Day Guarantee overall with every online order to make sure you find the perfect glasses...
Learn how to measure your eyeglasses frames size with our DIY infographic. Take control of your eyewear fit. Read more at Zenni Optical.
Knowing your glasses measurements can be useful when it’s time to get a new pair. If you have some old, well-loved frames, then their measurements are often a great starting point for your browsing. But measurements aren’t the only factor that matters, and they shouldn’t completely dict...
Four abbreviations are used for prism direction: BU = base up; BD = base down; BI = base in (toward the wearer's nose); BO = base out (toward the wearer's ear). How they’re measured Sphere power, cylinder power and add power always appear indiopters. They are in decimal form an...
The temples of youreyeglassesare the long stems of the frames that connect the front of the eyewear to the back of your head (just behind your ears). Glasses temples must be the correct length for your frames to fit comfortably and securely on your face. Temple length is measured in mill...
Whether you're hitting the surf or the slopes or just spending a day on the lake, sunglasses are a must-have accessory. Find out if the $10 sunglasses are as good as the high-cost ones.
Eye-tracking technology has been a pivotal tool in the study of visual attention and salience. By recording where and for how long individuals gaze at specific points in a visual scene, researchers can infer which elements are most salient and how visual attention is distributed across a stimulus...
having or seeming to have four eyes. Slang: Usually Disparaging. wearing eyeglasses (sometimes used facetiously). Are there any animals with four eyes? To this day, the only animal that we know of that has four eyes isthe jawless lamprey. The parietal and pineal foramina in the extinct mo...
Safety Glasses Indulge in luxuryeyewear withup to 50% off eyeglassesUp to 50% off eyeglasses SHOP NOW Clearance!Get up to 50% off select frames & lensesSHOP NOW Buy now, pay laterdiscover more Back All sunglasses Women Men Ray-Ban Clearance Up to 50% off Virtual Mirror Complete...