The present invention is related to a method and a software program for optimizing the positioning of software functions in a memory of a computing device. A resource restriction agent receives operating system calls related for resources and provides resource request data to a resource agent. In this arrangement, the liquid introduction controller selects for each of the individual passages whether or not the sample liquid is introduced therein. An attachable nose bridge provides nose support for the frame member and attaches to the sides of the lenses.