Cone cornea is a corneal disease of unknown origin, in which the central cornea or a part of the cornea becomes progressively thinner and bulges forward in a cone-like shape, resulting in irregular corneal astigmatism and high myopia with varying degrees of visual dysfunction, and is a difficult refractive disorder. Cone-shaped corneas are most commonly seen in adolescents and are one of the most common diseases that cause severe vision loss in adolescents. RGP lenses are the safest and most reliable non-surgical treatment for cone corneas recognized by the world’s leading ophthalmologists. 90% of children with cone corneas can be well controlled by wearing these lenses, significantly improving their vision and quality of life.