Blurry video due to lens peeling

Anyway to replace the plastic lens cover on the battery version doorbell? Our doorbell faces West and the Texas sun has crystallized parts of the surface plastic causing a blurry image. It started with hairline cracks in the plastic and then a layer separated off the outside. It affects the top portion of the lens. This essentially blurs the head of the person detected. This is a live shot and has nothing to do with the pre-roll or other video components.