Applanation tonometry: interobserver and prism agreement using the reusable Goldmann applanation prism and the Tonosafe disposable prism

Abstract

There is an acceptable agreement between IOP measurements made with the reusable Goldmann tonometer prism and the disposable Tonosafe prism. Interobserver variability in IOP measurements within an outpatient setting is larger than that found within a research setting, and may be of a level that impacts on clinical decision-making.