INTRODUCTION Over the past thirty years, the most crucial factor in the evolution of frame…

INTRODUCTION Myopia is reaching pandemic proportions around the world, in the United States and Europe,…

INTRODUCTION Society is increasingly digitalized. The continuous use of new digital devices places greater demands…

INTRODUCTION There are different reasons for non-adaptation in progressive lenses. The aim of this article…

INTRODUCTION Since the first progressive addition lenses, a variety of companies have offered similar technical…

INTRODUCTION The satisfaction of progressive users is subjective and depends on their individual perception. This…