 Monitoring of glaucoma requires frequent evaluation of IOP and disease severity, typically with visual field tests. When a patient is diagnosed with glaucoma an optimum level of IOP or target IOP is determined based on patients characteristics, such as severity of disease and life expectancy. In current models of care patients have their IOP measured at the clinic at different intervals. If the IOP is noted to be high, or above the patients target, additional treatment is recommended. Accurate and frequent IOP measurements at different points in time are thus imperative. 