Custom Surgical GmbH was funded in August of 2019 in Munich, Germany. We focus our work on the development of smartphone applications and optical systems for ophthalmology. During the past 2 and a half years we have reached more than 60 countries with our flagship product, the MicroREC. The MicroREC is an optical system that allows the usage of any smartphone with any Microscope or Slit-Lamp. We have currently sold over 700 units with special interest and focus in training centers. Therefore, our current focus is on training, where our systems have already proven their value with the high quality recording and streaming functionalites. At the ESCRS we will be presenting a paper presenting the findings of our AR training application and we will simultaneausly lunch it during the congress.