Final answer:
Arrow worms are not explicitly addressed regarding eyes, but some worms have eyespots to detect light, while others, such as Loa loa, do not have eyes but are associated with the eye due to their migratory behavior.
Step-by-step explanation:
Do arrow worms have eyes? Although arrow worms are not specifically mentioned in the reference material provided, we can draw conclusions based on the general information about various types of worms. Some worms, such as the Dugesia flatworm, have eyespots which allow them to detect light in their environment but do not provide detailed vision like human eyes. Moreover, the African eye worm, known as Loa loa, is named for its visible migration across the eye's conjunctiva but does not suggest it has eyes itself. It's clear that worms have a range of sensory adaptations that can include eyespots for perceiving light; however, whether arrow worms specifically have this feature would require further research into Chaetognatha, the phylum to which arrow worms belong.