Sunglasses are made through a process that involves several steps, including design, prototyping, materials selection, and production. Here is an overview of the general process of how sunglasses are made:

Design: The process begins with the design of the sunglasses. This may involve creating a sketch or a computer-aided design (CAD) model of the desired sunglasses.

Prototyping: Once the design is complete, a prototype of the sunglasses is made. This prototype is used to test the fit and function of the sunglasses and to make any necessary adjustments to the design.

Materials selection: The next step is to select the materials that will be used to make the sunglasses. This may include choosing the type of lens material, the frame material, and any other components that will be used in the final product.

Production: After the materials are selected, the sunglasses are produced. This may involve cutting the lens and frame materials to the appropriate shape and size, assembling the components, and applying any finishes or coatings.

Quality control: Before the sunglasses are shipped to customers, they undergo a quality control process to ensure that they meet the required standards for fit, function, and appearance.

The specific process for making sunglasses may vary depending on the manufacturer and the materials and technologies being used.