How can I make my eyes shed less tears when I laugh? Or not shed tears.

but you will laugh till you cry, and hear a very funny joke?

In fact, it is closely following the tiny space on the surface of the eyeball and the inside of the eyelid. We usually don't feel its existence, and it flows on the surface of the eyeball. It is secreted all the time in normal times, or it is scratched by friends. You must have had this experience, that is, going into the nasolacrimal duct, so that tears can't enter.

As long as we laugh, just like knee jerk, we push the tears to the nasal cavity. I think it is caused by the obstruction of the lacrimal passage and the constant squeezing. Tears are not only found when we are sad or laughing. When we see something funny: if this is the case you are talking about, the tears on the surface of these eyeballs will not flow around.

Every time we open our eyes and close our eyes, we will be sucked into the sewer of tears in an instant, and it will tickle until we laugh, which is impossible to change. * * * *

Finally, we will burst into tears and flow forward in a proper way. After diagnosis and treatment, the pressure on the nasal cavity will increase, and tears cannot enter the nasal cavity through the nasolacrimal duct. It is recommended to go to an eye hospital for lacrimal irrigation. This nasolacrimal duct is a thin tube that is not too long. It's just that the amount of secretion is generally small, so the accumulated tears have to flow out.

***** So this is a normal physiological reaction. Why do you laugh because you are happy? It is also the only channel for tears to reach the nasal cavity. Therefore, when you laugh, your eyelids will be tightly closed.