Zeiss CLARUS 500 Instructions For Use Manual

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Contents

Instructions for Use 2 IntroductionCLARUS 500 2.5 Questions and Comments2660021165005 Rev. A 2017-08 21 / 144The name of software windows are Capitalized. For example: "Pa-tient Screen"Names of menus, and buttons or other selectable items, are shownin Bold.• View menu.• File > Save as• My documents > Documents2.5 Questions and CommentsIf you have questions or comments about this user documentationor the device, contact your ZEISS representative.2.6 System Overview2.6.1 System DescriptionCLARUS 500 is a non-contact, high-resolution imaging device for invivo imaging of the human retina. Imaging modes include:• True color reflectance imaging• Infrared reflectance imaging (IR)• Fundus autofluorescence with green or blue excitation (FAF-Gand FAF-B)• Stereo imaging• External eye imaging2.6.1.1 Principles of OperationUsing a monochromatic camera, a broad line of illumination scansacross and detects the retina.Red, green and blue LEDs (light emitting diodes) sequentially illumi-nate to generate true color images. The broad bandwidth of LEDsgives a true color rendering. Blue and green LED illumination forFAF (fundus auto-fluorescence) enables fluorescence imaging.By illuminating only a narrow strip of the retina at a time, the illu-mination stays out of the viewing path, keeping haze and fluores-cence of the anterior segment out of the retinal image and allow-ing a clear view of much more of the retina than the annular-ring il-lumination used in traditional fundus cameras. The design allows asingle exposure to image an area of the retina previously coveredby the 7-fields in the early treatment of diabetic retinopathy study(ETDRS).