Methods and compositions for treating ocular disorders such as retinal detachment and macular degeneration and methods and compositions for prognosing or diagnosing retinal detachment or macular degeneration in a subject are disclosed. In the cross-correlation method, pulses from the laser and pulses from another modelocked laser are incident on a two-photon detector that responds when the pulses overlap in time. Thus, although a UE initially fails to receive an intended MBMS service, it can set up an MBMS RB by receiving a related retransmitted control message. The elements are inserted into a passage having a predetermined width to sort out and deliver those elements which have passed through the passage to a feed path. In one embodiment, a thrust augmentation of over one hundred percent is achieved.