Ocular biology and diseases of Old World chameleons.

For centuries, Old World chameleons (Chamaeleonidae family) have been collected and studied for their unusual biology and features, which are unique among lizards and other vertebrates. They have advanced mechanisms for capturing prey with their tongue, but have a primitive mechanism for hearing. Chameleons have the most studied ocular system because of their highly adapted yet primitive biology. This system has specific features that are susceptible to new diseases, which may require novel therapies.