Duck Apparel eyewear is a small range of frames sold in South Africa, made up of The Milan cat-eye frame, The Cairo round frame and The Tokyo rectangle frame. Each one is named for its shape rather than for a trend, which makes the choice straightforward, you are picking a silhouette that suits your face and the rest of what you wear. The three shapes cover the main options in eyewear, an upswept corner, a full circle and a straight horizontal line. Choosing between them is mostly a question of contrast, because a frame shape that differs from your face shape is what makes a pair of glasses read as deliberate.
The Milan is a cat-eye frame, which means the outer corners lift upward and the top line of the frame is heavier than the bottom. That upsweep draws attention toward the cheekbone and the brow. The Cairo is a round frame with a continuous curve and no corners at all, a softer and more studious shape that has been in and out of fashion for a century. The Tokyo is a rectangle frame with a level top line and squared corners, which is the most neutral of the three and the easiest to wear with a formal outfit.
The practical differences are worth knowing before you choose. A round frame covers less of the face vertically, so it looks lighter. A rectangle frame carries more surface area and holds a bolder colour better. A cat-eye frame is the most directional of the three and changes the look of a face the most.