Enhance Moist Heat and Cold therapies with Blue Instant thermoeyes. Thermoeyes are optional gel packs that boost the original tranquileyes therapies by increasing temperature intensity. Thermoeyes tuck inside the goggle, replacing the thick gray moisture pad used for mild warm/cold treatments. A thinner white pad (thermopad) is soaked in warm (dry eye treatments) or cold (puffy eye treatments) and placed on top of the gel pack. For extra heat, snap the stainless steel disc inside the packet and the thermoeyes instantly generate heat. The heat lasts approximately 30 minutes.