Improve Concave lens meaning in Urdu

Is there any meaning of the word concave lens that needs an edit? Please click that meaning to rewrite it.

مقعر عینک

Is there any meaning of the word concave lens that needs to be removed from the list? Please click that meaning to mark it for deletion.

مقعر عینک

Do you want to add a new meaning, definition, and a sentence of the word concave lens? Please feel free to add.