Which condition is associated with the iris of the eye?

Coloboma is a specific ocular condition that directly involves the iris. It occurs when there is a defect in the development of the eye structures during fetal growth, leading to a gap or notch in the iris. This can affect vision and the overall appearance of the eye, depending on the severity of the coloboma. The condition is characterized by a missing piece of tissue, which is why it relates specifically to the iris itself.

Legal blindness, ptosis, and hyperopia do not pertain to the iris directly. Legal blindness refers to a level of vision loss, ptosis involves drooping of the eyelid, and hyperopia, or farsightedness, is related to the shape of the eyeball and how light is focused on the retina. Each of these conditions impacts different aspects of vision or the structure of the eye, but only coloboma is identified as a condition associated with the iris specifically.