The invention efficiently and effectively secures and releases a rail-launched missile. More specifically, the present invention provides a wetting solution\u2014eye drops for contact lenses comprising one or more member selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and a terpenoid. Anchor points are identified based on the measured cardiac intervals, and for each identified anchor point, a segment of at least three consecutive said cardiac intervals that is generally centered about the anchor point is defined.