Definition

Chemosis is a condition in which the membranes that line the eyelids and surface of the eye (conjunctiva) are swollen. The outer surface covering appears to have fluid in it. Often, the conjunctiva become so swollen that the eyes cannot close properly.

Alternative Names

Fluid-filled conjunctiva; Swollen eye or conjunctiva

Considerations

Accumulation of fluid in the eye surface membranes causes them to swell. This symptom is often related to anallergic response, infection, or severe exposure.

Causes

• Angioedema
• Allergic response
• Viral infection (conjunctivitis)
• Exposure such as sleeping with eyes open

Review Date: 8/18/2003
Reviewed By: Edward B. Feinberg, M.D., M.P.H., Professor and Chair, Ophthalmology, Boston University School of Medicine, Boston, MA. Review provided by VeriMed Healthcare Network.