The fundus of the eye is a part of the eye that is located at the back of the eyeball. It includes the retina, optic disc, macula, and fovea. There are several synonyms for the fundus of the eye, including the posterior segment, ocular fundus, and ophthalmoscopic fundus. The fundus of the eye can be examined in a clinical setting using various instruments such as ophthalmoscopes and fundus cameras. It is an important part of the eye as it helps in the detection and diagnosis of several eye conditions and diseases such as macular degeneration, diabetic retinopathy, and glaucoma.