This is a problem with all keyboards! I solve this by making a folder for the gig, where the songs are placed in the order that I want to play them. So I just press the next button. That may sound rigid, not so much room for sudden requests and such, but as a visually impaired person I have to do it this way many times. There have been some posts about people making shields around the screen to keep out the light. Filter sunglasses may help some, but you have to try out what kind of color and filter is best for you, so some trial and error here. Sunglasses without filter will probably not help.