Glossy laptop + Matte External Monitor?
 

I just bought a laptop that has a glossy shiny finish and its pretty nice. But now I need to buy an external monitor, probably a 19inch. But the glossy 19" monitors are kinda expensive, so I will have to buy a matte one. My question is...will switching constantly between a bright glossy screen and a matte screen cause eye fatigue? since it will have to always adjust to the brightness of both every 5 to 10 seconds that I need to look at the other screen.