System configuration Intelligent Refractor RT-5100 Auto Ref/Kerato/Tono/Pachymeter Auto Lensmeter LM-1800PD Space Saving Chart SSC-370 System Table ST-5100 Features Highly advanced and space saving optometric workstation incorporating a refractor, auto ref/kerato/tono/pachymeter, space saving chart, lensmeter, etc. Various system configurations to fit each customer's needs.