Clip On Sunglasses Is The Magnet On Clip-on Sunglasses Harmful Physically?

Is the magnet on clip-on sunglasses harmful physically? - clip on sunglasses

For EasyClip, a magnet is imbedded in the platform of the normal glasses and the other on the clip-on sunglasses to match up. Purchased this means that we will pass a magnet for the eyes all day. I wonder whether the magnetic field is harmful to the eyes or ... Brain?