TOPCON AUTORE/KERATOMETER

Article:

A keratometer, also known as an ophthalmometer is a diagnostic tool for measuring the curvature of the anterior corneal surface, which is used to assess the quantity and the axis of astigmatism. A very popular and reliable type of manual keratometer a position (commonly referred to as a Bausch and Lombtype keratometer) is shown in Figure 1 Although this type of keratometer rarely goes out of calibration, it should be checked for accuracy at least once a year.
procedure
To verify the accuracy of the keratometer you need a standard set of balls that many manufacturers include with keratometer. Such a set typically includes three highly polished steel balls known curvatures (eg, 40.50, 42.50 and 44.75 diopters) and a device magnetized mount that attaches to the headrest of the keratometer
Adjust the eyepiece
Do not omit this step. If you do not adjust the eyepiece, you may think your keratometer is out of adjustment, when it can not be.
Place a sheet of white paper on the back of the keratometer. The white background will best illustrate the crosshairs when viewed through the eyepiece.
Turn the instrument.
Turn the eyepiece fully counterclockwise. You will notice that the crosshairs appear blurred, and thus inhibit accommodation.
Keeping both eyes open, turn the eyepiece clockwise (more) until the crosshairs into focus, then stop. The keratometer has been adjusted for your refractive error.
NOTE: Do not move the eye back and forth in the direction of more and less; only approach the focal point of the plus direction.
The Reference-Keratometer TOPCON Full Auto is the newest product Eyecare Company, and features a compact design, weighs 11 pounds less than its predecessor, and simplifies the standard autorefraction and Keratometry measurement procedure just a step. When the group to Full Auto mode, one healthcare professional can automatically align, focus and acquire a reading for one eye and continue to the opposite eye to perform the same function - all with a touch of a button. The RK-F2 incorporating a motorized chin rest has a minimum size of 2.0 millimeters, a foil on the product of the student's predecessor a minimum of 2.5 millimeters. Together, these features contribute to a process of comfortable, efficient selection, helping to assist the healthcare professional when a patient's pupil is difficult to dilate. Reference-Keratometer The RK-F2 Full Auto is expected to be available for purchase in the second quarter of 2012 through authorized Canon USA dealers.
The KR8800 features fast, easy and accurate measurements, a 20% wider measurement range, a color LCD screen, and a 2.0mm minimum pupil diameter. Fast and accurate refraction and keratometry readings. New color LCD screen. Rotary Prism measurement for enhanced accuracy.
2.0mm minimum pupil diameter. Simultaneous display of binocular readings. Scenic fixation chart. USB connection for fast data transfer. Auto fire mode for fast reliable data collection.