11/9/2023 0 Comments Normal retina pictures1 Multicolor image can be captured with both 30° and 55° field of view along with three reflectance images (BR, GR, and IR). Other unique advantage of this modality is the completion of all scan acquisitions in a single machine and utilization of the rescan follow-up mode of the Spectralis platform for patients having multiple image acquisition at multiple time points. 2 Other advantages include small pupil scanning and avoidance of discomforting white light, as used to obtain CFP. Inbuilt live eye-tracking technology and “noise” reduction techniques enhance image stability and clarity. Confocal technology results in a sharp image with higher resolution and contrast. MCI has the inherent advantages of much superior confocal scanning technology. The images obtained have low contrast and lesion margins are not well delineated. It is difficult to obtain good images in presence of media opacities. It uses bright white light and needs dilated pupil, thus making it uncomfortable for patients. ![]() CFP utilizes a broad spectrum of illumination and it is the imaging modality that best correlates with clinical ophthalmoscopy. 1Ĭolor fundus photography (CFP) is currently the most commonly used fundus photographic modality. The information from these three images is integrated to form a composite multicolor image. The blue reflectance (BR) particularly provides details of the inner retina and the vitreoretinal interface such as epiretinal membranes, retinal nerve fiber layer (RNFL) thinning, and macular pigment changes. The green reflectance (GR) image allows imaging of retinal blood vessels, hemorrhages, and exudates. The infrared reflectance (IR) image visualizes structures at the level of the outer retina and choroid. These penetrate the tissue to different depths, simultaneously capturing and depicting information originating from different retinal structures. ![]() It simultaneously acquires three reflectance images of the retina using three individual lasers of different wavelengths: blue (488 nm), green (515 nm), and infrared (820 nm). Multicolor imaging (MCI) is a non-invasive retinal imaging modality available in the Spectralis platform (Heidelberg Engineering, Heidelberg, Germany).
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