Flies cannot see much farther than 24 to 36 inches away for their eyes, but that is not due to a lack of lenses-dragonflies have thousands of lenses! In one eye, dragonflies have 2000 more lenses than seven times the number of lenses that houseflies have in one eye if one housefly and one dragonfly eye together have 34000 lenses, how many lenses do houseflies have in one eye? How many do dragonflies have in one eye