A slit lamp provides a three dimensional view of the anatomical parts of the eye and magnification of these different structures through the use of a beam of light during an optometric exam. Optometrists use slit lamps to identify disorders, infection or any other complications offering a more interactive approach to documenting an eye exam.
There are several types of optometric slit lamps including conventional biomicroscope, portable slit lamps, and digital slit lamps. Considerations include magnification, illumination, slit width/length, and slit aperture.
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| Company | Topcon Healthcare | Topcon Healthcare |
| Item | SL-D4 Digital-Ready Slit Lamp | SL-D2 Digital-Ready Slit Lamp |
| Price | | |
| Weight | w/Table: 17 kg
w/ Unit Table: 16 kg
w/o Table and Chinrest: 9.5 kg | w/Table: 17 kg
w/ Unit Table: 16 kg
w/o Table and Chinrest: 9.5 kg |
| Filters | Blue, Red-Free, Amber
UV Cut (Normal Use), IR Cut (Normal Use) | Blue, Red-Free, Amber
UV Cut (Normal Use), IR Cut (Normal Use) |
| Light Source | Halogen Lamp / LED | Halogen Lamp |
| Dimensions (W x H x D) | 550mm x 558mm x 399mm (With Table) | 550mm x 558mm x 399mm (With Table) |
| Power Requirements | 100 to 240V;
50/60Hz | 100 to 240V;
50/60Hz |
| Field of View | 6x(35.1mm),
10x(22.5mm),
16x(14.1mm),
25x(8.8mm),
40x(5.6mm) | 10x(22.5mm),
16x(14.1mm),
25x(8.8mm) |
| Eyepiece Magnification | 12.5x | 12.5x |
| Microscope | Galilean magnification changer with converging binocular tubes | Galilean magnification changer with converging binocular tubes |
| Slit Width | Continuous: 14 - 0 mm (circle at 14 mm) | Continuous: 14 - 0 mm (circle at 14 mm) |
| Slit Length | Continuous: 14 - 0 mm (circle at 14 mm) | Continuous: 14 - 0 mm (circle at 14 mm) |
| Slit Angles | 0 to 180 degree with horizontal scanning capability | 0 to 180 degree with horizontal scanning capability |
| Magnification | 6x, 10x, 16x, 25x and 40x | 10X, 16X and 25.6X |
| Description | The SL-D4 is part of Topcon's D-Series Digital Slit Lamps. It can be used as a conventional examination instrument or with the optional DC-3 integrated digital camera for 8 megapixel imaging. This slit lamp features superb optics and five convenient | The SL-D2 is part of Topcon's D-Series Digital Slit Lamps. It can be used as a conventional examination instrument or with the optional DC-3 integrated digital camera for 8 megapixel imaging. This cost-effective slit lamp features excellent optics |
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