The images created by the laser wavelengths can also be separated into red-free and green-free images. The latest scanning laser ophthalmoscope uses confocal laser scanning microscopy to deliver high-resolution, widefield images. Many cameras also have measuring calipers within the software to measure length, diameter, perimeter and area of retinal pathology.įundus photography can also image mid-peripheral and far-peripheral lesions and then stitch the various images together, creating a collage of systematic peripheral sweeps. Many cameras also allow side-by-side comparison, or overlapped imaging that aligns successive retinal photos, to assess subtle changes to the size and shape of lesions. Many fundus cameras allow full color as well as red-free and green-free filters to visualize inner and outer retinal layers. The same patient, seen in 2015, displays visible changes to the nevus.įundus photographs capture the current funduscopic appearance of the retina, macula, vasculature and optic nerve. This fundus image, obtained as a baseline in 2007, shows a new patient with a choroidal nevus.įig. This article provides an overview of a variety of retinal imaging devices and how you can use them in your practice.įig.
#Normal retina fundus photo serial
To do so, we must delineate the type of information each test provides, how it relates to the current state of the patient’s retinal disease, as well as its ability to provide a beneficial way of serial monitoring. It is the responsibility of the practitioner to determine if, when and how often these imaging modalities are appropriate for diagnosis and management. Using these modern wonders, we can monitor progression (or improvement) of retinal pathology and treatment with a degree of clarity we’ve never seen before. Each of the many retinal imaging modalities available on the market today help to aid in the diagnosis of retinal diseases in their own ways.
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