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Fundus photography in animals: Fundus photography is a useful tool utilised for veterinary research, veterinary ophthalmology, as well as education. [20] Numerous studies have used it as a research method for the study of ocular and systemic conditions in animals.
The fundus of the eye is the interior surface of the eye opposite the lens and includes the retina, optic disc, macula, fovea, and posterior pole. [1] The fundus can be examined by ophthalmoscopy [ 1 ] and/or fundus photography .
Baseline color and black and white red-free filtered images are taken prior to injection. The black and white images are filtered red-free (a green filter) to increase contrast and often gives a better image of the fundus than the color image. A 6-second bolus injection of 2-5 cc of sodium fluorescein into a vein in the arm or hand
Fundus photographs of the left eye (left image) and right eye (right image). Each fundus has no sign of disease or pathology. The gaze is into the camera, so in each picture the macula is in the center of the image, and the optic disc is located towards the nose. Both optic discs have some pigmentation at the perimeter of the lateral side ...
Researchers from the Institute of Exercise and Health Sciences at the University of Basel demonstrated that cardiovascular fitness and body composition affect retinal vessel diameters which in turn give an indication of a person's cardiovascular health. One parameter evaluated in retinal vessel analysis, the mean arteriolar to venular diameter ...
Dilated fundus examination (DFE) is a diagnostic procedure that uses mydriatic eye drops to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye. [1] Once the pupil is dilated, examiners use ophthalmoscopy to view the eye's interior, which makes it easier to assess the retina , optic nerve head , blood vessels ...
Noyes conducted early studies on Fundus photography and took the first successful fundus photograph of a rabbit eye in 1862. [ 4 ] [ 5 ] As a founding member of the American Ophthalmological Society , established on June 7, 1864, Henry D. Noyes joined 18 other physicians, including Daniel Bennett St. John Roosa and Edward Delafield , the ...
The reflex relies on the transparency of optical media (tear film, cornea, aqueous humor, crystalline lens, vitreous humor) and reflects off the fundus back through media into the aperture of the ophthalmoscope. [2] The red reflex is considered abnormal if there is any asymmetry between the eyes, dark spots, or white reflex .