A medical device that can be used to cut a cornea. A denormal value operand may be prenormalized by a first processing lane of the vector execution unit upon detecting the denormal value. A second worker server module can compress the second data block using a second compression algorithm, resulting in a second compressed data block. The second slide assembly is movably disposed on the base and includes a measurement tool for measuring the position of an anchorage. In some embodiments additional magnets provide increased field intensity at the equilibrium location this increases stability of the levitated magnetic element against overturning. A tissue penetrator may be housed within one of the arms to extend across the distal opening between the arms.