H00-H06: Disorders of eyelid, lacrimal system and orbit

H04: Disorders of lacrimal system

The disorders of the lacrimal system are a group of conditions affecting the structures responsible for the production and drainage of tears. These conditions can arise from various causes such as inflammation, infection, blockage, or injury, and can affect different parts of the lacrimal system, including the tear ducts, tear glands, or tear sac. Common symptoms often include excessive tearing or dry eyes, eye irritation, redness, or swelling near the inside corner of the eye, and sometimes discharge or blurred vision. Disease progression varies based on the specific disorder, but some conditions could potentially lead to eye infections or eye damage if not properly addressed. These disorders primarily affect the eye but can also have implications for overall visual health.