REPRODUCIBILITY WITH THE KEELER PULSAIR-2000 NONCONTACT TONOMETER

Aims-The IOP variation on repeated testing with the recently introduce d Keeler Pulsair 2000 instrument was investigated. Methods-One hundred normal individuals (50 male and 50 female) new to the instrument had three sets of IOP recordings within a 15 minute time period. Results-T he mean of the first set of IOPs from both right and left eyes was sig nificantly higher than those from subsequent sets (p<0.0001 for right eyes and p=0.01 and <0.0002 for left eyes). This tendency increased si gnificantly with increasing IOP. Second and third IOP sets were, Howev er, similar indicating stabilisation of IOP measurements. The coeffici ent of repeatability of the instrument between second and third sets w as 4.2 mm Hg for right eyes and 3.6 mm Hg for left eyes. Conclusion-Th e Pulsair 2000 passes the British standard for reproducibility of a st andard test method.