The tear duct is generally connected to the nasal cavity, but other structures of the eye, such as the eyeball, are not connected to the nasal tissues.
The lacrimal system of the eye is connected to the nasal cavity. The lacrimal duct consists of the lacrimal punctum, the lacrimal duct, the common lacrimal duct, the lacrimal sac, the nasolacrimal duct and other parts of the lacrimal duct, and the tears secreted by the eye can pass through the lacrimal duct into the nose to be drained away.
In the case of colds and other conditions, the mucous membrane of the nasal cavity is congested, swelling can lead to nasolacrimal duct occlusion, which can make the tears to the nasal cavity drainage is not smooth, so when the cold, patients often accompanied by the performance of tears. In addition, it should be noted that newborns, due to the imperfect development of the lacrimal sac and tear duct, the nasolacrimal duct is not smooth, and there may be an increase in eye secretions or eye infections and other manifestations.
It is recommended that patients with nasal or ocular disorders should consult a hospital in a timely manner to assess their condition and follow the doctor’s instructions for treatment.