Diagnostic instruments, systems and methods for performing measurements on eyes are disclosed. Certain examples provide a healthcare services analysis and visualization system. Immediately after the engine is re-started, the ECU sets an initial value of the estimated temperature of each heat generating portion in such a manner that the initial value reflects a temperature drop of the heat generating portion in the deactivation period of the engine. Data can also be written to the RF tag by the reader. Each x, each y, and each z is an integer greater than or equal to zero.