This article compares the sustainability of horn and recycled material eyeglasses. Horn, sourced from water buffalo byproducts, offers biodegradability and low carbon emissions but involves artisanal labor and higher costs. Recycled materials reduce plastic waste and support circular economies but depend on energy-intensive processes. Choice depends on priorities: natural decomposition (horn) vs. waste diversion (recycled). Both materials advance eco-conscious eyewear, with hybrid solutions likely shaping future innovations.