I recently spent about 3 hours with my Irlen diagnostician, Ann Bonvallet. After careful selections we came up with a tint that is composed of light shades of yellow, orange and gray. I could tell how much better reading became. The whites are more subdued now. I paid for overnight shipping both ways and my lenses were shipped to the lab in Long Beach on Monday and I got them back on Wednesday. I am fascinated by my depth perception when driving. The trees along the highway are in focus both in the foreground and background. The trees in the foreground really stand out.