The Elvish Name Generator. J.K.Rowling Official Site - Harry Potter a. Advanced Dragon Description. As shown on the picture above, for a creature with composite eyes, the Earth still look like the old planet we still know but the details are poor.
For an insect, the important point is probably to distinguish the flowers from the landscape and your hand (or predator) before you hit him. It is simple and well, it does the work for them but seriously, any large creature would be greatly disadvantaged by this type of eyes. No slit at all; eyes appearing like a crystal ("crystalline" eyes)? Think about the pernese dragons. How are they able to see something?