I own a cremello, and have for the past 4 years. While he had always been spooky at strange things like "seeing" a wheelbarrow after being halfway past it, I have just contributed this to an high calorie diet (something I have recently changed), and it has definetely calmed him down some. However, his eyes are extremely sensitive to bright light. He keeps his eyes squinted nearly shut in bright sunlight. So, it if is remotely bright outside at all, he has a fly mask on all year (yes, even in snow, which can be particularly bright due to the reflection). It may seem strange, but it really helps him not have problems seeing in the pasture due to the bright sunlight.