Schiotz Tonometer according to Prof. Schiotz for containing the Intraocular pressure. All main parts are made of High-Quality Brass and are chrome plated. Red pointer enables easy reading of the scale and three weights are (5.5 g, 7.5 g, 10 g / 0.19 oz, 0.27 oz, 0.35 oz). This is come with 1 year warranty. This is a measuring device for calculation of intraocular pressure and fluid pressure inside the eye. Ophthalmologists use tonometers to treat glaucoma patients. Eye tonometer takes very less time in ascertaining the intraocular pressure in the eye. Fluid pressure of eyes are measured by Tonometers in terms of mm Hg.