How does the giant eyes help them survive in their habitat?

The giant eyes help them to see in low light conditions. Many deep-sea creatures live in areas where sunlight does not penetrate very well. To compensate for this, they have developed large eyes that can collect as much light as possible. This helps them to find food and avoid predators. Their large eyes also give them a wider field of vision, which is important for spotting potential threats. Additionally, some deep-sea creatures have specialised retinas that are sensitive to bioluminescent light, which is the light produced by other deep-sea creatures. This allows them to see and communicate with each other in the darkness of the deep ocean.