انسداد مجرای اشکی | حکیمان نور

Blocked tear duct

1. Tears are produced by the lacrimal gland (above the eye).

2. They drain through small openings (puncta) in the eyelids.

3. Then pass through the canaliculi → lacrimal sac → nasolacrimal duct,
and finally into the nose.

When the nasolacrimal duct is blocked, tears cannot drain properly and overflow onto the face.