What is the difference between PC lenses and Aspheric Lenses . Do Polarized
sun lenses need not glare? And are the Lenses Polycarb?

Aspheric lens designs reduce or eliminate these distortions for a wider field of view and better peripheral vision. This wider zone of clear imaging is why expensive camera lenses feature aspheric curves.They are almost made of plastic material,while PC lenses are made of polycarbonate material which can not be tinted.
Polarized lenses are used in sunglasses to reduce glare from reflective
surfaces such as the surface of a lake or the hood of a car. They accomplish
this feat through a process called polarization, much like a venetian blind
controls sunlight through a window.