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Techniques of Fundus Imaging - Sankara Nethralaya
- https://www.sankaranethralaya.org/insight/PDF%20Files/July15/13_Imaging.pdf#:~:text=newer%20variant%20of%20fundus%20photography%2C%20infraredre%EF%AC%82ectance%20%28IR%29%20imaging,color%20fundus%20photog-raphy%20in%20screening%20for%20neovascular%20AMD.19
- none
Color Infrared Photography of the Ocular Fundus - JAMA
- https://jamanetwork.com/journals/jamaophthalmology/fullarticle/631353
- Standard fundus photography equipment was used with color infrared sensitive film and appropriate filters to eliminate the blue end of the visual spectrum. Resulting photographs encompassed a spectrum of 500 to 900 mμ wavelengths, including most of the visible light spectrum and extending well beyond it into the near-infrared spectrum.
US10413179B2 - Infrared fundus imaging system
- https://patents.google.com/patent/US10413179B2/en
- A fundus imaging system is used to generate fundus images when a patient has not received mydriatic pharmaceuticals. The fundus imaging system includes a …
Fundus Photography - an overview | ScienceDirect Topics
- https://www.sciencedirect.com/topics/medicine-and-dentistry/fundus-photography
- Fundus Photography. CFP is a sensitive imaging technique showing pigmentary abnormalities, for example, various patterns of hyper- and hypo-pigmentation, indicating loss of RPE. ... (SLO), which generates an image based on the amount of light reflected by a single wavelength of infrared laser. Newer cameras utilizing multiple scanning lasers ...
Comparison of Color Fundus Photography, Infrared …
- https://journals.lww.com/cmj/Fulltext/2016/05200/Comparison_of_Color_Fundus_Photography,_Infrared.15.aspx
- The wavelength of infrared scanning, OCT is 820 nm, 870 nm invisible laser and color fundus photography is visible light with multiple wavelengths. To date, the invisible light sources over 800 nm are used as the most of laser sources for retinal OCT.
Color Infrared Photography of the Ocular Fundus
- https://jamanetwork.com/HttpHandlers/ArticlePdfHandler.ashx?journal=ophth&articleId=631353&pdfFileName=archopht_92_3_020.pdf
- Infrared photography of the ocular fun-dus has been explored to define its use-fulness. Standard fundus photography equipment was used with color infrared sensitive film and appropriate filters to eliminate the blue end of the visual spec-trum. Resulting photographs encom-passed a spectrum of 500 to 900 m\g=m\ wavelengths, including most of the visible …
Comparison of Color Fundus Photography, Infrared …
- https://pubmed.ncbi.nlm.nih.gov/27174333/
- In 11 patients (22 eyes), OCT, infrared fundus photography, and color fundus photography revealed 26, 18, and 9 hamartomas, respectively. The predominant hamartoma was type I (55.6%). All the hamartomas that detected by color fundus photography or IFG can be detected by OCT.
Fundus Photography Overview - Ophthalmic Photographers' Society
- https://www.opsweb.org/?page=fundusphotography
- Fundus cameras are described by the angle of view - the optical angle of acceptance of the lens. An angle of 30°, considered the normal angle of view, creates a film image 2.5 times larger than life. Wide angle fundus cameras capture images between 45° and 140° and provide proportionately less retinal magnification.
The Nuts and Bolts of Fundus Autofluorescence Imaging
- https://www.aao.org/eyenet/article/nuts-bolts-of-fundus-autofluorescence-imaging
- “Near-infrared FAF imaging uses very long wavelengths of light—about 790 nm—just beyond the ability of the human eye to detect,” said Dr. Sadda. These wavelengths excite molecules other than LF, most notably, melanin. The distribution of melanin in the eye, he said, provides a different type of information about the disease process than LF alone.
THE VALUE OF RETINAL IMAGING WITH INFRARED …
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4098760/
- Although SW-AF imaging outlined the regions of retinal pigment epithelial (RPE) atrophy (hypofluorescence) and enhanced the visibility of more funduscopically apparent flecks (hyperfluorescence), infrared-SLO imaging outlined the regions of choroidal, and RPE, atrophic changes. Degenerative changes in photoreceptor and RPE cell layers, evident on spectral …
Techniques of Fundus Imaging - Sankara Nethralaya
- https://www.sankaranethralaya.org/insight/PDF%20Files/July15/13_Imaging.pdf
- A newer variant of fundus photography, infrared reflectance (IR) imaging uses infrared light instead of white light for illumination. Red wavelengths are longer than the other colored wavelengths of the visible spectrum making them less prone to absorption by blood and melanin. This results in greater amount of light (reflectance) being avail-
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