What is the collective term for the iris, ciliary body, and choroid?

The term that collectively refers to the iris, ciliary body, and choroid is the uveal tract. This layer of the eye is crucial as it provides nourishment to the outer layers of the retina through its rich vascular supply. It also plays a significant role in the eye's overall function, such as controlling the amount of light entering the eye (iris), aiding in focusing (ciliary body), and supporting retinal health (choroid). Understanding this terminology is essential for appreciating the anatomical and physiological aspects of eye function and health. This knowledge is particularly relevant for nursing practice in low-risk neonates, where monitoring and understanding the development of sensory systems, including vision, is crucial.