An insert assembly (10) for the purpose of an injection mold (100) for manufacturing a first casting mold half (202) of a casting mold (200) for manufacture of an ophthalmic device wherein the insert assembly (10) is receivable in an injection mold half of the injection mold (100) and wherein the insert assembly (10) comprises an insert assembly end surface (14 18 22 26) which bounds an injection mold cavity (106) of the injection mold (100) for forming the first casting mold half (202). The insert end surface is provided with at least one notch (40 42) which forms a bounding structure cavity for forming a bounding structure (208 210) which is an integral part of the first casting mold half (202) to be formed with the injection mold (100) and which after placement of a second casting mold half (204) on the first casting mold half (202) bounds at least one haptics cavity (212) which links up with a lens cavity(206).
