LTL is among the top world producers of ophthalmic mineral lenses, in a range of technical indexes between 1.523 and 1.900. All our lenses, even the most specialised products, are made with the highest quality raw materials supplied by major industry leaders and are thoroughly tested and verified at every stage of the manufacturing process according to the highest market standards. Technical specialised departments complete the offer with HMC, Max, Mirror antireflection coatings. In addition to the production of mineral lenses, we offer the distribution of an ample and selected range of organic lenses. All LTL lenses comply with the European Directive 93/42 EEC for Class 1 medical devices.