Our eyes can see many things but not everything is visible to our eyes. Not everything that we could not see exists, this is true with the wind, and we can feel it though we may not see it. With our eyes we have seen the beauty of life but also the dark realities of life. But if our eyes were to be damaged then we would miss out on certain moments that would have been perfect if we could only see it.

One of the diseases in the eyes is cataract which later on if not treated can cause blindness, so early diagnosis and treatment is very important, not only for eye disease but also for other diseases. As technology makes its way through the years, there have been so many inventions that have made almost everything easier and more convenient. The biggest contribution that new technologies have made is in the medical technology where treatment and diagnosis has been possible for other diseases. Electrocardiography x-rays or radiology, magnetic resonance imaging, ultrasound, biopsy, endoscopy, abreugraphy, angiography, fluoroscopy, scintillography, ultrasonography, computer aided tomography and electroencephalogram are only some of the diagnostic tools that are used in the medical fields today.

Keratometer is one of them which were invented by a French ophthalmologist named Samuel Hankins. Keratometer is a diagnostic tool used for the measurement of the curvature of the anterior or front surface of the cornea, it is also known as an ophthalmometer. Karatometers are used for the assessment of the axis and the extent of astigmatism. Based on a current study, a keratometers uses the relationship between object sizes, image size, the distance between the reflective surface and the object, and the radius of the reflective surface.

Keratomerts have two distinct variants of determining the radius of reflective surface. The first variant is the Javal-Schiotz keratometer, according to a research this type of keratometer variant has a two position instrument which uses a fixed image and doubling size, and adjustable object size to determine the radius of curvature of the reflective surface. While Bausch and Lomb keratometer is a one position keratometer that gives readings in dioptric form. The only difference with the other variant is that image size is the manipulable variable. So if you want to find out more on keratomers, then surf up and enjoy flipping those pages as you learn more on keratometers.