Topcon SL-3E, Инструкция по эксплуатации

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OPERATION PROCEDURES
FUNDUS OBSERVATION WITH THE HRUBY LENS (OPTION)
In routine applications, only the anterior segment of the vitreous body can be examined because
of the refraction effects of the cornea and crystalline lens. However, with the Hruby Lens, exami-
nation of the fundus and the posterior segment of the vitreous body is possible.
Operation procedure:
(1) The pupil should be well dilated by administering a mydriatic approximately 20 minutes before
the examination.
(2) Insert the Hruby Lens guide plate into the hole at the rotational axis of the illumination and
microscope arms.
(3) Raise lever (A) shown in the illustration below, and move the Hruby Lens holder toward you so
that it now can move to the right and left under the chinrest. Insert the lower end of the Hruby
Lens shank in the groove on the guide plate.
(4) Center the illumination and microscope arms so that they face the patient's eye.
(5) Align lever (B), shown in the illustration below, with the center of the microscope's field of view.
Then move the lever (B) backward and forward to position close to the patient's eye.
(6) Use the joystick to focus on the fundus. The slit width and length will have to be adjusted to
reduce the undesirable reflections seen in the field of view.
(7) To view a different segment, either turn the microscope and illumination arms or have the
patient alter fixation by manipulating the fixation target.
(8) If the long mirror interferes in the examination, replace it with the short mirror.
Note: When moving the instrument to examine the fellow eye, first have the patient move
away from the chinrest as the patient's nose may come in contact with the Hruby Lens.
(9) After the procedure, move the Hruby Lens to the storage position on the right side of the chin-
rest.
Lever (B)
Lever (A)