Hyaloid fossa is a medical term used to describe a depression in the vitreous humor of the eye. There are several synonyms for this term, including the retinal fossa, which is a similar depression in the retina that serves as an attachment point for the hyaloid membrane. Other synonyms for the hyaloid fossa include the fovea centralis, macular depression, and optic disk. These terms are often used interchangeably with hyaloid fossa, but they may refer to slightly different structures or locations within the eye. Regardless of the terminology, the hyaloid fossa plays an important role in vision and is critical to maintaining clear, crisp images.