INTERNAL READING SCALES
The millimeter scales for the radius of curvature (bottom figures) and the diopter scales for the
corneal refractive power (top figures) of both horizontal (H) and vertical (V) axes, are seen in
the field of view, together with the mire images, during the measurement.
WIDE RANGE OF MEASUREMENTS
The range of measurements is extremely wide, with the millimeter scale covering 5.5 to
12.0mm and the diopter scale covering 60 to 28 diopters.
HIGHLY PRECISE MEASUREMENTS
Mire images are very sharp and easy to coincide, producing the measurement results with the
minimum of individual variations.
SPEEDY, ACCURATE FOCUSING ADJUSTMENTS
Focusing adjustments are quick but very accurate, because they only require coincidence of
double images without individual variations.
SPEEDY ONE-POSITION MEASUREMENT
While measuring one of the principal meridians with the TOPCON Opthalmometer, the other
principal meridian is automatically measured at the same time. Therefore, it is not necessary
to measure both principal meridians separately, in the case of corneal astigmatism. This
makes measurement quicker than the Two-Position method and also more accurate.
SUPERIOR HANDLING EASE
The horizontal and vertical knobs, as well as the axis rotating handle, are located for simple
operational ease. They allow for one-hand operation of the auxiliary knob which increases
handling ease for both right-handed and left-handed persons. In addition, there is an
improved joystick which can adjust not only elevation control of the instrument but also hori-
zontal positioning of the instrument.
EVALUATION OF UNUSUAL CORNEA IN IRREGULAR ASTIGMATISM
Evaluation is possible by simply checking the shape of mire image.