After a year of itching, burning eyes (blepharitis), several eye infections, a chalazion that was impairing my vision and 5 different doctors who prescribed antibiotics, antiparasitics, steroids, hot compresses and lubricating drops - none of which worked - I found NuLids. One week of using this device 2x/day cleared up 90% of my problem. The chalazion receded. I no longer wake up at night with gritty burning eyes. Reading is easier. My eyes look brighter and healthier. I'm thrilled and amazed.