Metrology in eye pressure measurements

Measurements and their precision are crucial for many fields of industry and services that have a direct impact on the quality, safety and reliability of products and applications. One of the areas that have a particular effect on national finances and people is the medical sector. The reliability and precision of the measured quantities have a direct and significant effect on the final diagnosis of a patient. An unrepresentative measurement of subject’s true essential indicators like blood pressure, body temperature or heart rate could lead to false diagnosis and incorrect or unnecessary treatment. This can in most serious cases result in a decrease of a patients quality of life and even in shortened live span. The treatment brings of course financial and social aspects that all affects the country’s economy negatively. This paper focuses on the improvement of medical measurements by applying metrological procedures that enable a more precise and reliable measurements. The subject of these efforts is the measurement of eye pressure by non-contact means that are an initial diagnostic indicator for the development of eye glaucoma. The general problematic of the measurements together with the theoretical and practical solution by means of a standard is presented.