Evaluation of the ICareTM‐one rebound tonometer as a self measuring intraocular pressure device

Abstract

Abstract Purpose To investigate whether the ICare one rebound tonometer (ICRBT) can provide accurate measurements of intraocular pressure (IOP) in the hands of an inexperienced user and to compare ICare measurements with Goldman tonometry (GAT). Methods A trained examiner instructed each of 60 normal subjects on use of the ICRBT. Each subject then measured his/her own pressure using the ICRBT. Finally, a different examiner, who was masked to the earlier readings, measured IOP by GAT. Results All of the subjects were able to obtain accurate measurements with ICRBT after three attempts. Mean intraocular pressures (IOPs +/‐ SD) obtained using the two instruments were GAT 16.5 +/‐ 3.7 mmHg; and ICRBT 17.9 +/‐ 3.6 mmHg. The 95% LoA for ICRBT‐GAT were from ‐2,5 to +5.7 mmHg Conclusion The ICRBT was accurate and reliable in the hands of normal subjects and may be used for self monitoring of IOP.