Standard High-Index 1.67 Advanced Progressive Lenses are designed to provide a seamless, multi-focal vision solution for individuals with strong prescriptions who require correction for near, intermediate, and distance vision. These lenses utilize 1.67 high-index material, which offers a thinner, lighter, and more aesthetically pleasing alternative to regular progressive lenses, making them ideal for people with stronger prescriptions who want to reduce lens thickness and weight while maintaining excellent visual clarity across all distances.