The present invention relates to a chemically strengthened optical component comprising an optical glass, having a depth of layer (DoL) of 1.0 to 50.0 μm, wherein the optical glass has a refractive index nd of at least 1.65, preferably at least 1.70, and wherein the optically glass comprises at least 5 mol % of a total of Li2O, Na2O and K2O or a combination of two or more thereof. The invention furthermore relates to a method for preparing the chemically strengthened optical component and the use thereof.