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Photochromic lenses, also known as transition lenses, were first developed in the 1960s by chemist Stanley Donald Stookey. Initially, they achieved color-changing effects through the inclusion of silver halide crystals in the glass. As technology advanced, the materials and processes used in photochromic lenses have evolved. Today, photochromic lenses are mainly available in two types: material-based photochromic and coating-based photochromic lenses.
What Are Blue Light Blocking Lenses? Blue light blocking lenses are specialized lenses coated with a special filter designed to reduce the amount of harmful blue light entering the eyes. This blue light predominantly emanates from electronic devices such as...
