Frequent wearing of contact lenses does not have an adverse effect on the thickness of the cornea, but may cause certain damage to the corneal epithelial cells of the eye. Contact lenses directly contact the surface of the cornea, causing it to be in a state of hypoxia, which can easily lead to abnormalities such as corneal epithelial scratches and dry spots, thus affecting the morphology of the cornea to a certain extent. In addition, although contact lenses are soft lenses with low quality, long-term wear can also cause some pressure on the cornea, which can also affect the shape of the cornea. But these are all physical changes to the curvature of the cornea, without changing the thickness of the cornea. After stopping wearing it for a period of time, the morphology of the cornea will repair itself to normal. (New News Agency)