The periscleral lymph space is a fluid-filled layer located between the sclera and the episclera of the eye. This space is essential for maintaining normal eye function and plays a vital role in the drainage of aqueous humor. There are several synonyms for the periscleral lymph space, including the uveoscleral outflow pathway, suprachoroidal space, and intrascleral space. These synonyms describe different aspects of the periscleral lymph space, but all highlight its importance in preventing intraocular pressure buildup and glaucoma. Understanding the function and anatomy of the periscleral lymph space is crucial for diagnosing and treating eye conditions that affect this region.