Carl Zeiss, the first company to release OCT 17 years ago, is proud to introduce its new line of OCT devices. The new Cirrus family consists of four new OCT models: two new Cirris HD-OCTs and two totally new models under the name of Cirrus photo.
Cirrus HD-OCT 5000
The Cirrus HD-OCT 5000 replaces the previous top-of-the-range Model 4000. While retaining all of the important clinical features from Model 4000, this new model also offers the latest cutting-edge hardware as well as the impressive FastTrac live eye tracking.
The FastTrac retinal tracking system locks onto the patient’s retina to negate eye movement and enables tracking of the current scan to the position of a prior scan. During acquisition, proprietary algorithms automatically detect motion and track the eye, allowing it to produce artifact-free scans in the face of eye movements and blinks. In fact, blinks become an advantage because it makes the scanning process more comfortable for the patient and helps avoid poor signal strength due to tear film break-up.
It is important to note that FastTrac is based upon the Cirrus Line Scanning Ophthalmoscope (LSO), which not only produces an excellent, high-resolution image of the fundus but also scans at an extremely fast rate (ie 20 scans per second). This is important because with such a fast refresh-rate, FastTrac is better able to compensate for saccadic eye movements. Additionally, FastTrac ensures a speedy acquisition by only re-scanning data that is actually affected by motion.
The good news is that current Cirrus HD-OCT 4000 users can also upgrade their unit to possess FastTrac
Not only does it improve the quality of the scans and the patient experience, it also allows the Cirrus to precisely scan follow-up visits in the same location every time allowing for better progression analysis, including for HD Raster scans.
The good news is that current Cirrus HD-OCT 4000 users can also upgrade their unit to possess FastTrac. This is part of the general Carl Zeiss philosophy of treating the Cirrus as a platform to be upgraded rather than replaced, and in doing so, protecting the longevity of such an important investment for the clinic.
Additionally, there are some significant hardware changes for the Cirrus HD-OCT 5000. Not only does it come with the latest computer hardware including a stunning 19-inch monitor, it also possesses a two-speed OCT scanner with the ability to scan at either 27,000 or 68,000 scans per second, the latter to be used as a platform for future Cirrus developments.
Cirrus HD-OCT 500
This new model replaces the Cirrus HD-OCT 400. It uses Live OCT Fundus technology to generate the fundus image instead of the LSO, thus allowing it to fit under a tighter budget. The Model 500 has the same new hardware as Model 5000 but additionally uses the 68,000 scan per second OCT setting to significantly increase the refresh-rate of the Live OCT Fundus image.
Cirrus photo
The Cirrus photo combines trusted Cirrus OCT technology with a full-featured non-mydriatic fundus camera in a completely new platform. The Cirrus photo is available in two forms: model 600 and model 800. Each features the same proven Cirrus OCT technology, but differ in the fundus imaging modalities that they offer. The Cirrus photo 600 offers colour, red, blue and red-free fundus images and the option of fundus autofluorescence, whereas the Cirrus photo 800 includes autofluorescence as standard as well as including fundas fluorescein angiography (FFA) and indocyanine green (ICG) angiography.
Since the Cirrus photo boasts a full-featured fundus camera including the renowned Zeiss telecentric optics, no compromise has been made in the quality of the fundus images.
Workflow too has been optimised by allowing the user to capture the OCT images and the fundus images either together or separately. If taken separately, both images are still able to be registered (or matched), even if taken on different days and even using different fundus capture modes.
The Cirrus photo is also easy to use, working in a similar way to the Visucam fundus cameras by using aiming guides and auto-focus to aid the user to get the right image first time.
Using autofluorescence adds another important imaging modality to the Cirrus photo armoury. Autofluorescence takes advantage of the natural fluorescence of lipofuscin at the level of the RPE, which hyper-fluoresces when the RPE is under stress and is absent when the RPE has atrophied (eg geographic atrophy). Due to these characteristics, it is becoming an important photographic technique in the management of Age-related Macular Degeneration and other macular dystrophies.
Finally, all members of the Cirrus family seamlessly connect to Forum Eyecare Data Management software and therefore have the ability to combine their raw data with the Humphrey Field Analyser to produce the unique structure/function Combined Report for glaucoma diagnosis and management.
Contact Details
40 – 52 Talavera Road
North Ryde NSW 2113
Contact: Customer Service
T 1300 365 470 or 02 9020 1333
(NZ) 0800 334 353
W www.zeiss.com.au
E [email protected]
