Opthalmic Lenses For Vision Correction: Review Of Application, Usage And Trends

This paper provides an overview of the current status and trends in the manufacture and use of mineral (inorganic) glass ophthalmic lenses. The focus is on the properties, manufacturing processes, and use patterns for mineral lenses, but the paper briefly touches on the trend towards newer organic materials that are substituting inorganic glass. The glass itself is evolving, both through improved composition and value added treatments such as photochromic treatment, polarising filters, and anti reflection coatings. Newer coatings and treatments that are emerging are also examined.