Haag-Streit Perkins MK3 Manual De Instrucciones página 22

en
5.72 Inaccurate Horizontal Centering
Result
The upper semi
circular rings appear
partly
The upper semi
circular ring appears
completely - the
lower ring partly
Correct position:
The edges of both
semi circular rings
meet exactly in the
centre of the ocular
The lower semi
circular ring appears
completely - the
upper ring partly
The lower semi
circular ring appears
partly
22
Image in ocular Cause
The measuring prism
is not focused on the
eye. The eye is too far
on the right
The measuring prism
is not focused on the
eye. The eye is still too
far on the right.
The measuring prism
is focused precisely
on the eye.
The measuring prism
is not focused on the
eye. The eye is still too
far on the left.
The measuring prism
is not focused on the
eye. The eye is too far
on the left.
Correction
Move the tonometer to
the right
Move the tonometer to
the right
Move the tonometer
to the left.
Move the tonometer to
the left.