Blog

  • What Are Multifocal Defocus Lenses?

    What Are Multifocal Defocus Lenses?

    Introduction The prevalence of myopia, or nearsightedness, is rising at an alarming rate globally, particularly among children and adolescents. This increasing trend poses significant public health concerns, as high myopia can lead to severe visual impairments and ocular complications later...

  • Pros and Cons of Photochromic Lenses

    Pros and Cons of Photochromic Lenses

    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.
  • Understanding Blue Light Blocking Lenses: Benefits, Drawbacks, and Suitable Usage

    Understanding Blue Light Blocking Lenses: Benefits, Drawbacks, and Suitable Usage

    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...