home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Contact Lens Series
/
Contact Lens Series Volume 1.iso
/
mac
/
Contact Lens Series V1(MAC)
/
Keratom.DIr
/
00602_Field_602.txt
< prev
next >
Wrap
Text File
|
1997-10-29
|
465b
|
18 lines
ZEISS OPHTHALMOMETER
Focusing the Eyepiece
Turn the eyepiece counterclockwise
until the circle in the center of the
field is blurred. Then turn the
eyepiece clockwise until the circle
just comes into sharp focus. The
measuring scales are visible in the
top half of the field and these should
also be in sharp focus now.
Some models have a lever just below
the eyepiece which removes the
scale from view.