Slit Lamps - 4 Models
The slit lamp is essentially a simple and generally under-used piece ofequipment. It consists of an illumination system and a binocular observationsystem, which when correctly aligned will result in a coincidental focus of theslit and microscope.
Illumination system
Basically a short focus projector projecting an image of the illuminated slit apertureon to the eye. This part of the system should be flexible to allow varioussizes and shape of slit beam. Usually a rheostat is incorporated and the lamphouse can be rotated. Neutral density, cobalt blue and red free filters areusually available, and occasionally a diffuser and polarizer
Using the slit lamp
Commence the examination using the 10x eyepieces and the lower poweredobjective i.e. 1x. Use the lowest voltage setting on the transformer. Selectthe longest slit length by means of the appropriate lever (17). Adjust the chinrest by means of control 27 so that the patients eyes are approximately levelwith the black marker on the side of the head rest. Adjust the height of theslit lamp until the slit beam is centred vertically on the patients eye. Focusthe slit beam on the eye by moving the joystick (1) either towards or away fromthe patient. Coarse positioning can be effected without using the microscopebut critical focussing should be carried out whilst viewing through themicroscope. The slit width is varied by rotating either the left hand or righthand knurled control 10. To vary the angle between illumination and microscopeuse one or other of these same controls as handles.
The slit should be set primarily in the vertical position, butany desired inclination can be achieved by means of the ball handle 15 (notchesat 45, 90, 135; stops at 0 and 180). By tripping the latch 11 and tiltingthe slit lamp column, the beam can be introduced from as much as 20 below thehorizontal. This is mainly used for carrying out gonioscopy.
For observation by sclerotic scatter or other dissociated formsof examination the centering screw 13 is loosened, so that the slit image canbe moved away from the centre of the field of observation. The image iscentered again by tightening the screw. Carry out the techniques describedbelow.
|
Specifications - Binocular Microscope |
|||
|
|
Eye Pieces |
: |
10x, 15x |
|
|
Objective |
: |
1x, 1.6x |
|
|
Total Magnification |
: |
10x, 16x and 24x |
|
Illumination Unit |
|||
|
|
Slit Image Rotation |
: |
0 to 180 |
|
|
Tilting Illumination |
: |
Up to 20 |
|
|
Filter Disc |
: |
Cobalt Filter, Green Filter, Yellow Filter Natural Density and Open Aperture |
|
|
Slit Disphragm Disc |
: |
Wedge Shaped Diaphragm Of Infinitely Variable Slit Lengths |
|
|
Halogen Lamp |
: |
12 Volt 50 Watts |

Price:
Accuracy : Precision illumination; aligned optic
Equipment Materials : Highquality plastic body with optical glass
Model No : ConXport Fiber Optic Headlight
Automation Grade : Manual operation
Feature : Intense white light; uniform illumination; adjustable focus; lightweight headband
Core Components : Fiber optic cable, lamp module, adjustable headband
Accuracy : High Precision Video and Image Clarity
Equipment Materials : Highgrade ABS Plastic and Stainless Steel
Model No : ConXport Endoscope Camera
Automation Grade : Manual
Feature : Portable, RealTime Video Capture, HighResolution Imaging
Core Components : Image Sensor, LED Light Source, LCD Display
Accuracy : Precise stereoscopic imaging for retinal diagnosis
Equipment Materials : Highquality plastic with metal adjustments
Model No : ConXport Indirect Ophthalmoscope
Automation Grade : Manual
Feature : Adjustable headband, bright halogen illumination, stereoscopic view
Core Components : Headband, ocular assembly, illumination system, lens holder
Accuracy : High precision optics
Equipment Materials : Glass, Metal
Model No : ConXport Retinoscope Mirror
Automation Grade : Manual
Feature : Easy to clean, High durability
Core Components : Mirror, Handle