TEAR FILM ANALYSIS
POLARIS is an eccessory for slit lamp, for the advanced analysis of the tear-film. It can be mounted on every brand slit lamp. It can be used thru the Phoenix software, or simply thru the microscope.
LIPID FILM EXAMINATIONPolaris enables interferometric examination of the lipid layer of the tear film. The biomicroscope must be focused on the tear film, while the diffused light image projected by Polaris remains out of focus. Depending on its thickness and regularity, the lipid layer may appear like any of the following: amorphous structure, marble appearance, wavy appearance, yellow, brown, blue or reddish interference fringes. The following figures show some interferometric images.
Polaris can also be used to assess the regularity of the corneal profile. By inserting the specific grids inside the internal cylinder of the instrument, a series of concentric rings is projected onto the cornea thus performing a keratoscopy. If the corneal surface is regular, the concentric rings will all be at the same distance. Any irregularities in the surface of the cornea will result in irregularities of the reflected image.
|Data transfer:||USB 3.0|
|Power supply:||5 V - 100 mA|
|Dimensions (HxWxD):||217 x 22 x 74.5mm|
|Lighting source||White LED|