Brief Answer:
Probably a compression on small nerves by the glasses.

Detailed Answer:
Hello and welcome to “Ask a Doctor “ service.

I have read your question.

The numbness in your case may be linked to compression of the terminal branches of the trigeminal nerve that supplies the face with sensory nerves.

The compression is happening on the point where the glasses sit on the nose.

Using soft coverings or loosening a little this part of the glasses may resolve the problem.

Hope you found the answer helpful.

Let me know if I can assist you further.

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