Near vision evaluation considering reading performance.

摘要

To assess near vision performance we measure the capability of the patient to read a series of letters on a near vision chart. However, is this the correct way to evaluate near vision? Should patients undergoing presbyopic refractive surgery be evaluated in this way? Should we control the capability to read a letter or the ability to read a book? This is a complex question that needs to be discussed by vision scientists.Reading is an important everyday task. But what do we mean by reading? It is difficult to define what reading means. It is clear that reading is an all-encompassing activity that can take on different forms. For example, when you look at a computer, are you reading? When you look at a map, are you reading? When you look at a newspaper for the latest sports results, are you reading? These kinds of activities are not-to some extent-considered reading. However, the reading process is more than that, as it involves complicated mental processes activated in the interpretation of concepts andmeanings that are stimulated by the recognition of printed symbols. Therefore, a short definition of reading cannot be specific if trying to encompass the complex act of reading. However, a universal agreement among experts in the field of reading exists-the true definition of reading is the ability to derive meaning from text.