Rebound, applanation, and dynamic contour tonometry in pathologic corneas.

Purpose: To compare the practicability of using an Icare rebound tonometer (RT) versus a Goldmann applanation tonometer (GAT) or a Pascal dynamic contour tonometer (DCT) for measuring intraocular pressure (IOP) in patients with corneal abnormalities and, furthermore, to study the influence of central corneal thickness, corneal diameter, corneal radius, and axial length.

Methods: One hundred seventy-one pathologic eyes with corneal abnormalities and 26 nonpathologic control eyes of 99 patients were included. Pathologic corneas were divided into subgroups: previous keratoplasty, keratoconus, corneal scars, corneal dystrophies, and bullous keratopathy.