Goldmann applanation tonometer (GAT) has been the gold standard for intraocular pressure (IOP) measurement for over five decades. However, the last few years have seen lots of research in an effort to develop the ultimate tonometer. One of the outcomes of that effort is the rebound tonometer (RBT) (Icare; Tiolat Oy, Helsinki, Finland), which has appeared in clinical practice after extensive research in animal models. It's relatively low cost; portability, ease of use and no need for anaesthesia

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... make it ideal for routine clinical practice. We carried out a study to assess the advantages of rebound tonometer over Goldmann applanation tonometer in screening of patients for glaucoma and to compare intraocular pressure values obtained with RBT and GAT in subjects with normal and altered corneas. Agrawal A et al Tonometers for glaucoma screening Nepal