Iolite
I used color slides and a mini spot light (with a 15 watt bulb) on my daughter's eyes while she slept when she was 4 years old to help heal her strabismus (eye turning) from trauma to the bridge of her nose caused by falling against the edge of our window seat when she was barely 3 years old. I did this over a period of 10 evenings right before our next visit to the optometrist. At the visit, the optometrist exclaimed how much the eye turning had improved. In fact, it was barely perceptible and only when she was tired. The colors I used were recommended in the book Advanced Pranic Healing - green, yellow, violet and indigo. Five to ten minutes with each color. We continued vision therapy over the next 3 years and she recovered stereo-optic vision (vision in both eyes) and the turning that was so disconcertingly apparent at age 3 is unnoticeable today at 11 yrs old.
Twenty-two years before that, I used a big sheet of green cellophane taped across my living room window and placed my ailing cat (in a comfy basket) in front of it before I left for work each day. He was recovering from exploratory bladder surgery for bladder crystals and was diagnosed with hypertrophic cardiomyopathy. With the addition of a home made diet and the addition of Co-Q10, he made a complete recovery and lived an additional 11 more years to the ripe old age of 18.