To provide an injection molded product for optical use suitable for a fine optical lens having a small thickness.

The thin optical molded product is produced by injection molding a polymer composition which contains a hydrogenated norbornene-based polymer having been prepared by ring-opening polymerizing a norbornene-based monomer composition, followed by hydrogenating, and a natural and/or synthetic wax, as molding materials. Fischer Tropsch Wax preferred as the wax.