A pressure vessel in accordance with the present invention comprises a cover, movable between an open position and a closed position, and a clamp for releasably clamping the cover in its closed position. Ophthalmic lens solutions containing one or more compositions of one or more disinfecting agents at a relatively high pH and methods of making and using the same are also described. At least one receive weight vector is computed as a function of the channel matrix and at least one of transmit weight vectors.