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Ophthalmoscopy is a diagnostic technique that is used to detect the symptoms of eye disorders, especially retinal detachment. This innovation has made animals' eye diagnosis easy. Basically, there are two types of ophthalmoscopy, direct and indirect. In direct ophthalmoscopy, the light source is condensed, which reflects the erect image of the retina. The magnification of the image is 15 to 17 folds. This type of ophthalmoscopy is useful for optic nerve atrophy or neuritis diagnosis. While in the case of indirect ophthalmoscopy, a convex lens reflects an inverted image to the observer. Magnification of the image with this type is just 2 to 5 times. This type increases the observer’s perception. A darkened room is best for performing both types of ophthalmoscopy.