A surgical instrument and methods for the treatment of glaucoma are provided. A system is provided comprising a first mirror having a first reflective surface and a second reflective surface that is spaced from and opposes the first reflective surface to define a cavity between the mirrors. A sending unit 15 of the broadcasting apparatus 11 broadcasts the content with the entry information attached thereto. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body.