There are over 300 different species of irises. Here are ten of the most popular types of iris, and some of their ...

The huge fabric sphere is lit from the inside with a light bulb at the center, and the iris and pupil mechanism orbit the bulb like parts of an orrery. By keeping the bulb in the center and ...

Anterior uveitis is known to be associated with several autoimmune diseases, and certain tissue types may also predispose individuals to it. However, the precise mechanisms underlying the disease ...