The HandyRefK / HandyRef is lightweight and also has excellent weight distribution. Its compact design makes it easy to hold, balance, and use. Intelligently designed button layout is also useful in onehanded operation. Full graphic LCD with 3.5inch color screen New full graphic 3.5inch color LCD is 40% larger than the previous model. Clear screen design and intuitive icons similar to the ARK1 / AR1 series provide high userfriendliness. Supine position mode By tilting the instrument 60º or more downward, it enters supine position mode automatically. When measuring from patient’s side, the cylinder axis is compensated by 90º, and is displayed. Pupil zone imaging method The HandyRefK / HandyRef analyzes a wide area (Max. 4 mm diameter) pupil zone. By measuring the light coming through the pupil zone in a wide area, more accurate measurement data closer to the subjective refraction is now possible. SynchroScan Technology The HandyRefK / HandyRef adopted an excellent new measurement method; “SynchroScan Technology”. Measurements start when the alignment starts, and locks in the data when alignment becomes optimal as a measurement value. It provides a more stable measurement value more effectively and efficiently.