The cornea is the clear, outermost layer of tissue that covers the iris and pupil. A normal cornea with a smooth and even curvature is able to focus light sharply onto the retina at the back of the eye, hence producing clear images. If the curvature of the cornea becomes too steep, light cannot be focused properly, which is when myopia occurs.
Every pair of our Ortho-K lenses is customised to fit the wearer’s eyes using a proprietary software. Made from a gas-permeable material, these lenses act like braces for the eyes, slowly moulding the corneal tissues with a series of hydrodynamic movements.
While the wearer sleeps, the cornea gradually become “flattened”, with the corneal tissues being relocated to the periphery of the cornea.
When the wearer removes the Ortho-K lenses the next day, the newly-smoothened cornea is able to focus light sharply once again, resulting in crisp vision. This movement of tissues to the periphery is the main mechanism to which myopia control becomes effective.