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LensCrafters Eyewear Guide GUIDE TO GLASSES & SUNGLASSES

Know your eyewear and be super savvy about what shapes and features make sense for you. Stroll through the LensCrafters' eyeglasses and sunglasses guide to learn more.

ANATOMY OF A FRAME

No matter what your eyewear is made of, its basic anatomy looks like this. Click and drag the frame to check out the 360° view.

GLOSSARY A-Z

A

Acetate is a modern alternative to petroleum-based plastic made from plant-based cellulose and all-natural cotton flakes. Eco-sustainable, skin-friendly and completely hypo-allergenic, acetate takes color beautifully and can be blended to mimic the extraordinary patterns of nature.

Asian Fit is designed to fit faces with higher cheekbones, it has less curvature and minimal bridge.

B

Bridge joins the eyewires to distribute weight evenly across nose.

Brushed is a finish used to give metal frames a softly textured rather than polished look.

Brow Bar is an upper bar along top of frame which has become a trend-signal.

C

Carbon Fibre is a frame material with a high strength to weight ratio that makes it extremely durable and highly rigid.

Coating is a treatment applied to the surface of your lens to add functional protection.

Anti-Reflective Coating (AR) eliminates reflections from front and back of lens to block glare.

Hydrophobic Coating repels water, sweat and reduces spotting on lens surface.

Scratch-resistant Coating protects lenses from abrasions and scratches with a resin film

Core Wire is the wire frame inside of acetate temples. Some styles show off this underpinning in a clear acetate.

D

Double Bridge is a two-piece bridge design that adds stability and classic design.

E

END PIECE links the eyeglass front to the temple and can feature embellishments.

Eye Wire is the piece that holds the lens in place. It varies dramatically from one from to another.

F

Frame ID is a standard reference printed inside the temple. It includes brand, model, color, size, and temple length.

Front Piece is the front part of the eyeglass frame.

FRAME SHAPES & FRAME TYPES

From high fashion to extreme sports, there’s a frame for every look and lifestyle.

FULL RIM

is a frame style where the lens is completely surrounded by a frame.

SEMI-RIMLESS

is a frame style with the lens partially surrounded by a top-only frame.

RIMLESS

is a style that features no rim at all; the lens appears to float attaching directly to temples with pins or screws.

BUTTERFLY

Feminine and graceful, it has the shape of its namesake.

CAT EYE

Feminine and classic with a distinctive upswept edge.

PILLOW

A softly curved rectangular silhouette with graceful feminine lines.

PILOT

A traditional teardrop shape, also called Aviators.

IRREGULAR

Catch-all frame name for unusual shapes like heart, trapezoid, or raw cut.

OVAL

An elongated horizontal shape with a softly, rounded curve.

RECTANGULAR

A traditional wider top and bottom and
shorter sides.

ROUND

A circular shape of any size. Rounds can be small and retro or large and contemporary.

SQUARE

A symmetrical shape where the dimensions of the front are equal
to the sides.

H

HD LENSES are made using digital computer technology based on a digital scan of your eyes. The lenses are customized precisely for your specific vision correction and one-of-a-kind eyes.

Hinge is the open & close part of the frame that connects the rim to the temples. Click here to see the hinge on Anatomy of a Frame.

Flex Hinges use an internal spring to give you extra durability with greater flexibility.

Light Ray Hinges are made of ultra-flexible and resilient titanium.

Mono-Block Hinges are made from a single block of metal so there’s less chance of breakage.

Pinless Front Hinges made of nickel-silver are used in acetate or nylon frames.

Rivet Hinges are fixed to the front or temples using rivets inserted into the hinges’ twin holes to create a vintage look.

L

Lens Materials

Glass used to be the material of choice but has been replaced by lightweight, durable high-tech plastics that offer optimum clarity.

PolyCarbonate is a type of high-index plastic that’s thinner, lighter and impact resistant.

HD is a digital lens that provides the highest level of detail and clarity especially in high index prescriptions.

Lens Power refers to the strength of the lens correction and is commonly used to describe the different correction areas (near, mid, distant vision) in multi-focal or progressive lenses.

M

Matte describes a non-shiny surface that is used in both metal and acetate frames to give a non-reflective, flat finish.

Memory Metal is a metal alloy used for frames that’s usually made from titanium and nickel. It keeps its shape while offering a fit that’s lightweight, strong and comfortable.

Monel® is a nickel and copper alloy used in metal frames. It’s lightweight and highly resistant to corrosion.

MAKING SENSE OF MATERIALS

Frames fall into two camps—Metal and Acetate, or Injection Molded.

Molded Plastic Glasses Frames (Sun) Molded Plastic Glasses Frames (Optical)
Metal Frame Sunglasses Metal  Frame Glasses
OPTICAL
SUN

MOLDED FRAMES

Acetate and Injection Molded frames feel like plastic and come in a vast array of colors. Injection-molding is a process where melted nylon or plastic is forced into a mold.

BROWSE PLASTIC SUNGLASSES BROWSE PLASTIC EYEGLASSES

METAL FRAMES

Metal frames include sleek silver, nickel, bronze, titanium, or steel. They can be painted or finished with a coating for a matte or brushed effect.

BROWSE METAL SUNGLASSES BROWSE METAL EYEGLASSES

N

Nickel Silver is an alloy of nickel and zinc. It’s more rigid than other mixed metals and is often used in eyewear for hinges, ear pieces, and bridges.

Nylon Fiber is a lightweight and resilient alternative to acetate frames that comes in a wide array of colors and styles.

Nose Pads are the soft plastic cushions that sit on either side of the nose.

O

Oversized eyewear describes a larger than usual frame silhouette typically for square, round, or rectangular shapes that gives you a dramatic, sophisticated look.

P

Pad Arms hold the nose pads in place to keep your eyeglasses comfortably balanced across your nose.

PolyCarbonate Lens are thinner and lighter than other plastic lenses and more durable making them a go-to lens choice for kids and active adults. Also great for strong prescriptions because it corrects without adding thickness.

Protection Index refers to the level of UV eye protection in sunglasses. Always choose lenses that are rated UV400 or higher which means they’ll block 99.9% of UV rays.

Polarized Lens are sunglasses treated with a coating that filters out horizontally reflected glare to give you sharper details, enhanced colors, and enhanced depth perception.

PROGRESSIVE LENSES offer up to three vision powers in one lens making them a great option for older adults with a need for near, mid and distance vision correction.

R

Retro is a vintage look characterized by rounded shapes, rivets, and etched metal or coin edge tooling.

S

Single Vision (SV) one correction throughout entire lens (usually for distance or reading).

Stainless Steel is an affordable alternative to titanium. It offers a lightweight feel and hypoallergenic benefits because it’s nickel-free.

T

Temple is also known as a ‘stem’ and is the side bar piece on eyeglasses or sunglasses that extends from the hinge to the ear piece. Temples can be decorative or purely functional and come in a variety of styles.

Titanium is a premium metal that’s lightweight, hypo-allergenic, and highly resistant to corrosion. It’s super strong and surprisingly light.

Temple Tips are the curved pieces that hold on around your ears. On metal frames, they can be in a contrasting acetate or other material to add fashion to function.

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