COMPASS PERIMETER

 

iCare COMPASS is an automatic perimeter which also combines an active retinal tracker and a scanning ophthalmoscope. This technology provides retinal threshold sensitivity as well as TrueColor confocal images of the retina and fixation analysis, which is eye movement artefact-free.

The COMPASS is compatible with SAP and offers full range of 24-2, 30-2 and 10-2 visual field-testing programs, containing age-matched databases of retinal sensitivity in normal subjects.

The COMPASS supra-threshold testing is used to perform fast screening for visual field (VF) loss.

The iCare COMPASS measures sensitivity at specific retinal locations with high topographic accuracy due to the retinal tracking technology which compensates for any eye movements during VF examination, providing higher accuracy of the test results.

Continuous, automated, tracking of eye movements yields to active compensation of fixation losses, with perimetric stimuli being automatically re-positioned prior to and during projection based on the current eye position.

This mechanism is critical to ensure accurate correlation between function (i.e. retinal threshold values) and structure (fundus image). In the absence of this mechanism, any shift in eye position occurring at the time of stimuli projection would easily produce artifacts in VF results, with an inaccurate sensitivity being reported.

The COMPASS superimposes the threshold map over a 60° image of the fundus. This allows simultaneous assessment of retinal function and structure.

The COMPASS is equipped with an automatic refractive correction system, thus, eliminating the need for trial lenses.

The unique 3D Stereo View technology of COMPASS captures automatically two separate photos of the nasal field, at different angles and different focal planes (bifocal), creating outstanding 3D perception of the disc.

The COMPASS provides 60° confocal images of the retina in different modalities: TrueColor, Infrared and Red-free, enhancing diagnostic and prognostic capabilities in glaucoma management. The true color confocal imaging system, allows the visualization of the retina in real color, with outstanding details of the Optic Nerve Head (ONH).

The COMPASS offers embedded capabilities for network connectivity, for both remote data review and data backup. The COMPASS Remote Viewer is a browser-based software that allows for reviewing from any network computer on the same local area network (LAN), with password protection. The Remote Viewer provides image comparison tools, anatomic measurements, post-processing tools and more. Images taken at different times can be registered and displayed as rapidly alternating to facilitate detection of morphologic changes over time. Cup to disc calculation – ratios can be measured and stored.

The iCare COMPASS is marketed as relatively more patient friendly because the test is straight forward, relatively fast, and can be discontinued at any time and continued again without data loss.