Does the privacy screen have any features to reduce eye strain?

Yes, the privacy shield blocks up to 51% of blue light emitted from the display in the 380nm - 480nm wavelength range, helping to reduce eye strain and improve visual comfort.

How does the privacy filter protect my screen from unwanted viewers?

The privacy filter darkens your MacBook's screen from the side while providing a clear viewing angle of 60 degrees to the user, effectively preventing visual eavesdropping.