1 Give the drug in concentrations no greater than 25 mg/mL. 2  Administer the drug at a rate no greater than 25 mg/minute. 3  Inject the drug through the tubing of an infusion set that is running and known to be functioning satisfactorily.
Pachymetry is used to measure here to really fine-tune the axial length measurement and determine how much the distance between cornea and the back of your eye might influence the power selection of your IOL implant.
Since hysteresis is a rate-dependent effect, one way to measure it in the cornea is to move the tissue rapidly, inducing a measurable damping effect. This is exactly what the ORA does. When a rapid air pulse is used to indent the cornea, the dynamic resistance of the tissue causes a slight delay in the movement both inward and back out, which the ORA can detect.