Periscleral lymph space

Periscleral Lymph Space

Diagram of the human eye, showing the periscleral lymph space.

The periscleral lymph space is a significant anatomical feature of the human eye, playing a crucial role in the maintenance of ocular health. It is a part of the lymphatic system associated with the sclera, the white outer coating of the eye.

Anatomy

The periscleral lymph space is located between the sclera and the Tenon's capsule, also known as the fascia bulbi. This space is filled with lymphatic fluid, which serves to cushion the eye and facilitate the exchange of nutrients and waste products between the sclera and surrounding tissues.

Function

The primary function of the periscleral lymph space is to act as a conduit for lymphatic fluid, which helps to maintain the intraocular pressure and provides a pathway for immune cells to reach the eye. This is essential for protecting the eye from infections and maintaining overall ocular health.

Clinical Significance

Disruptions or abnormalities in the periscleral lymph space can lead to various ocular conditions. For instance, impaired lymphatic drainage can contribute to increased intraocular pressure, a risk factor for glaucoma. Additionally, inflammation or infection of the periscleral lymph space can result in conditions such as scleritis or episcleritis.

Related Structures

The periscleral lymph space is closely associated with several other ocular structures, including:

• The cornea, which is the transparent front part of the eye.
• The choroid, a vascular layer of the eye containing connective tissue.
• The retina, the light-sensitive layer of tissue at the back of the eye.

Imaging and Diagnosis

Ophthalmologists may use various imaging techniques to assess the periscleral lymph space, including ultrasound biomicroscopy and optical coherence tomography. These tools help in diagnosing conditions related to the lymphatic system of the eye.

Related Pages

• Sclera
• Lymphatic system
• Intraocular pressure
• Glaucoma
• Scleritis