LUMENIS SELECTA - Slit Lamp Controls

Selecta
PBL200051, Rev J
50  Operation
Slit lamp controls
Eyepieces, diopter adjustment, and interpupillary distance
The Selecta slit lamp microscope eyepieces have a 12.5x magnification, with
diopter adjustments on both eyepieces of ±5. One eyepiece has crosshairs to
aid focusing. The eyepiece positions can be manually adjusted to suit the
operator’s interpupillary distance. Eyecups can be pushed back if the operator
wears spectacles.
Microscope magnification changer
The magnification changer is used to select the slit lamp viewing
magnification. The magnification is adjusted using the large rotary control
knob behind the binocular assembly.
Illumination tower rotation
The illumination tower incorporates the illumination mirror which directs the
slit lamp illumination to the treatment area. The tower can be rotated
approximately 90° either side of center. To rotate the tower, loosen the
illumination tower locking screw and manually rotate the tower as desired.
Tighten the tower locking screw to lock the tower into position. An angle
scale, located below the illumination tower locking screw, indicates the
rotation angle of the tower.
Slit width control
Slit width ( )is adjusted using a rotary control knob on each side of
the illumination tower. Rotate the knob clockwise to widen the slit width,
counter-clockwise to narrow the slit, as shown on the control icon.
Slit rotation control
The slit can be rotated up to 90° either side of vertical. The slit rotation
control is a knurled section of the illumination tower. Rotate the control in
the direction of the desired rotation. A slit rotation angle scale is located
directly above the slit rotation control.
Illumination aperture and color filter selector wheels
The illumination aperture ( ) and color filter ( ) selector
wheels are located on the front of the illumination tower beneath the slit
width control. The top wheel selects the illumination aperture. The bottom
wheel selects the colored viewing filters. The filter selections are: green, cobalt
blue, neutral density (ND at 28% attenuation), and none.
Microscope arm rotation
The microscope arm can be rotated approximately 30° either side of center. To
rotate the microscope arm, loosen the microscope arm locking screw and