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OPTIONAL ACCESSORIES
HRUBY LENS
Used for observation of the fundus and posterior segment of the vitreous body.
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, examination 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) Remove the hole cap to insert Hruby lens guide plate in the hole of carrier arm so that the
groove of guide plate fits with guide pin on the microscope arm.
(3) Insert the lower end of the Hruby Lens shaft 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, shown in the illustration below, with the center of the microscope's field of view.
Then move the lever 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.
Specifications
Hruby Lens: -58.7 diopters
Hruby lens
Lever
Guide plate
Summary of Contents for SL-1E
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