It's not very often I use my blog to promote products, but this will truly make your life better, Kenneth :-)
For Glare Free LCD screen viewing… Checking your histogram, composition and focus outdoors is easy with Hoodman's HoodLoupe. HoodLoupe is worn around your neck just like a normal loupe. When it is time to review your shot; bring Hoodloupe up to your image and place your eye up to the eye cup for complete glare free viewing. HoodLoupe has a +-3 diopter to accommodate those with less than perfect vision. HoodLoupe adjusts focus just like a binocular eye piece... you turn the eye piece in or out to set for your vision. HoodLoupe's precise German glass optics give you a 1 to 1 ratio for true LCD screen viewing. Each HoodLoupe is encased in a user friendly rubber for comfort and protection from bumps that will occur throughout your shoot. Comfortable lanyard and compact protective storage case included. Fits up to 3.0 inch LCD screens.
PS. I got mine at Pictureline (link directly to the loupe).