Refractive surgery is facing an important period of its evolution. Day by day we are getting used to terms such as: "wave front", "customized ablation", "supervision", "aberrations", etc. What will be the future of all these technologies? It is important to understand that all these terms are based on some unquestionable facts. In this manuscript the following subjects were considered: 1. Improvement of visual performance when correcting optical aberrations, 2. The change in the concept of physiologic optics, 3. The relationship between refraction and refractive map 4. Visual benefit, 5. Chromatic and spherical aberrations
Refractive errors; Ocular refraction; Ocular adaptation; Vision; Retina; Visual acuity; Optics
