1. A method, of treating a structure of an eye with an x-ray beam from a radiotherapy system, comprising: contacting a surface of the eye with an eye contact member that is coupled to the radiotherapy system; emitting a first x-ray beam toward the structure, from the radiotherapy system located outside the eye, such that the first x-ray beam has a first trajectory that intersects a primary axis substantially at the structure; after emitting the first x-ray beam, moving the radiotherapy system about the primary axis; emitting a second x-ray beam toward the structure, from the radiotherapy system, such that the second x-ray beam has a second trajectory, different than the first trajectory, that intersects the primary axis substantially at the structure; wherein the primary axis passes through the structure and the eye contact member.