Actually, it is not a sensible choice if you choose cat eye glasses to match your thick lenses, particularly for those with high myopia, just like you. To help disguise a very thick eyeglass lens, it is strongly recommended you try on thicker frames, which means keeping the lenses as small and light as possible as otherwise the weight makes you uncomfortable. Therefore, the particular design of the cat eye glasses cannot meet this demand. By the way, according to things mentioned above, hi-index lenses which are much thinner must be the good choice. However, they might be helpful yet the lenses will be pretty large.