Nebula Dragons are nocturnal creatures. With the best eyesight to be found, they are often seen staring into space. Each dragon tends to observe a particular nebula and will eventually change their colors and patterns to match it. As the nebula changes over time, the dragon changes with it. The more intricate the design of the nebula, the better chance an individual has of attracting a mate. It is said that the markings on no two Nebula Dragons will be exactly the same.
Retina Nebula has, as her name suggests, the Retina nebulae shaped on her wings. Although her father was cursed and was blinded ever since, she herself was not affected by the curse even though the magician told her father that all his descendants would be blind as well.
That's why it is said of her to be a lucky symbol. Retina is a happy young dragoness, indeed.