The vitreous membrane is a thin layer of tissue located in the eye. It is responsible for maintaining the shape and structure of the eye. There are several synonyms for the term "vitreous membrane," including the vitreous body, vitreous humor, or simply the vitreous. The vitreous body is a gel-like substance that fills the eye and acts as a cushion and lubricant. The vitreous humor refers to the clear, colorless liquid that fills the vitreous body. These terms are commonly used in the medical field and are important for understanding the anatomy and functions of the eye.