What are the drainage channels where surplus fluid is drained after eye cleaning and how does this system work?

Allah Almighty has created a wonderful system for cleaning and protecting the outer parts of the eye. Some glands which are called lacrimal glands produce a water-like fluid. The two lacrimal glands are right and left below the eyelids and the rest are small glands which are located inside the conjunctiva, the protective membrane of the eye. The fluid from these glands cleanses the eye and keeps the surface of the eye moist. After being used and evaporated, much of the fluid drains into the nose. This fluid also takes the form of tears. The system that connects and drains the eye and nose is called the lacrimal drainage system. You can see its components in the pictures below:

Lacrimal drainage system

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