Why does Madonna wear eye glasses (Optymitrist glasses not sunglasses) during her rehearsals?

And during her movie Im going to tell a secret and most recently too? Does she hlaser eye surgerynd what astimatism? She should have an laser eye surgery, dont ya think?

Laser eye surgery can go wrong at some points, its easier to just wear glasses. perhaps she has a low degree but it’s better for her to wear them.