“…Several authors have utilized IOL Master in in their studies, although others have utilized systems such as Orbscan II (Bausch & Lomb, Rochester, NY, USA) or conventional keratometres to obtain the K values. [2][3][4] In what concerns the determination of the 0°-180° axis, the system utilized by the FDA and the authors was dermographic marking with slit lamp while in this study the Elies marker was utilized (E. Janach, Como, Italy). The results of these studies in what concerns the lens rotation degree are slightly lower than our 3.87°±3.25 values, varying in a range of 2.2° to 3.75°, which is quite consistent with our data.…”