Purpose. To compare the intraocular pressure (IOP) readings taken by ICare, Pascal dynamic contour tonometer (DCT), and ocular response analyzer (ORA) with those taken by Goldmann applanation tonometer (GAT). We sought to evaluate the influence of central corneal thickness (CCT) on IOP measurements and to compare patients’ preferences for the four tonometers. Methods. In this prospective study,...

The applanation pneumatonograph combines pneumatic and electronic systems. It is used for measuring intraocular pressure, aqueous humour dynamics, and ocular pulsation. In the present study the PTG and the Goldmann tonometer have been used to measure the intraocular pressure in 40 normal and 40 glaucomatous eyes. It has been found that the results of the two instruments correlate well. The PTG ...

PURPOSE Noncontact tonometers are useful when regulations preclude use of contact tonometers by medical students and other nonophthalmologists. Our study compared the measurements by the portable, noncontact tonometer (PT100) with Goldmann applanation tonometry (GAT). METHODS This was a prospective study of 98 eyes from 98 patients. Intraocular pressure (IOP) was measured by GAT and the PT100...

THE Goldmann applanation tonometer (1954), as modified by Goldmann and Schmidt (1957), is becoming the standard instrument for measuring the intra-ocular pressure. The accepted method of preparing the eye for a pressure reading is to anaesthetize the cornea and then to stain the pre-corneal film with fluorescein (DukeElder, 1962). The disadvantage of this method is that it requires two manceuvr...

Unless there is a contraindication (e.g. trauma or corneal ulcer), all adults attending an eye unit should have their intraocular pressure (IOP) measured. Many people with glaucoma have no symptoms and do not know they have the condition. All children who have had cataract surgery should also have their IOP measured at every follow-up visit, if possible. Finding glaucoma early allows treatment ...

PURPOSE To compare intraocular pressure (IOP) measurements with the Goldmann applanation tonometer (GAT) and the ICare rebound tonometer (RBT) in high myopic eyes. PATIENTS AND METHODS This randomized prospective study included 40 eyes of 40 patients with high myopia. All patients' central corneal thickness (CCT), anterior chamber depth (ACD), axial length (AXL), keratometry, and refractive m...

Aim of Study: To compare the intraocular pressure (IOP) measurements obtained with the computerized tonometer 80 non-contact tonometer (CT80 NCT) and those with the Goldmann applanation tonometer (GAT) in patients with normal and high IOP. Patients and Methods: This observational clinical study comprised 187 eyes of 105 patients (54 men and 51 women), who had their IOP readings measured with bo...

INTRODUCTION Goldmann applanation tonometer (GAT) is the gold standard for Intraocular Pressure (IOP) measurement but has disadvantage of being contact device and problems with portability. The aim of the study was to compare the Keeler's Pulsair noncontact tonometer (NCT) with GAT in Indian Population. MATERIALS AND METHODS Eighty-one subjects were screened from a Glaucoma clinic of a tertia...

Tonometry is a fundamental procedure in routine ophthalmologic examination. Although regarded as the reference standard, the Goldmann applanation tonometer (GAT) has its limitations. A new portable alternative to the GAT is the iCare rebound tonometer (RT). The aim of the present study was to compare the intraocular pressure (IOP) results obtained using the RT and GAT and then correlate the res...