Comparison of transpalpebral tonometer with Goldmann applanation tonometer

Transpalpebral tonometer, a new generation intraocular pressure (IOP) measuring instrument is nowadays used for self-tonometry. It is convenient and noninvasive and seems suitable for IOP measurement at home, as recommended by several authors. Apart from its use for self-tonometry, it has been reported that transpalpebral tonometer is more accurate in determining the IOP in thinned cornea after photorefractive procedures when compared with Goldmann applanation tonometer (GAT). However, several other studies have revealed that their sensitivity in detecting IOP in glaucomatous eye is low compared with standard GAT. The aim of this study is to review the results of several studies that have compared IOP measurements obtained by the transpalpebral tonometer and GAT.