The flexible chart system by Topcon CC-90SW comes with software and hardware. Use personal PC and TFT monitor ranges from 19”. With the flexible chart system is compatable with both PC’s and Apple Macintoshtm. The White Maddox LED light supports the Maddox testing. Topcon CC-90SW is used to perform common visual acuity tests such as Landolt C, Children charts, Tumbling E, Letters and numbers. Unit operation is as follows. Comes with easy to use calibration kit, this ensures the correct projection for visual acuity tests. The CC-90SW comes with a remote controller. The CC-90SW is operatable through the Topcon CV-5000 automated phoropter as well. All functions of the CC-90SW is supported by the CV-5000.