Acrylic is a form of plastic that is commonly used as a reflective lens material, due to its light weight, scratch resistance, and durability. So it is fair to say that acrylic is a type of plastic lens.
A common example of acrylic plastic lens use is in eyeglasses, as they offer the necessary clarity and durability required for eyewear. Acrylic plastic lenses are also commonly used in camera lenses, mirrors, and other items requiring good visual clarity and high quality reflectivity.