**Core Concept**
Iris bombe is a condition characterized by the formation of a posterior synechiae (adhesions between the iris and the lens) in the eye, leading to a bowing forward of the iris. This is often a result of chronic uveitis or other intraocular inflammation.

**Why the Correct Answer is Right**
Iris bombe occurs due to the formation of synechiae between the iris and the lens, which prevents the aqueous humor from properly flowing through the pupil. As a result, the iris is pushed forward, creating a bombe shape. This condition can lead to increased intraocular pressure, glaucoma, and vision loss if left untreated. The formation of synechiae is often due to chronic inflammation, which can be caused by conditions such as uveitis.

**Why Each Wrong Option is Incorrect**
**Option A:** Iris bombe is not typically seen in patients with angle-closure glaucoma, which is a different condition characterized by a sudden blockage of the drainage angle of the eye.

**Option B:** Iris bombe is not a result of trauma to the eye, although trauma can cause other types of eye injuries.

**Option C:** Iris bombe is not typically seen in patients with cataracts, although cataracts can be a result of chronic inflammation or other conditions that lead to iris bombe.

**Clinical Pearl / High-Yield Fact**
Iris bombe can be a sign of underlying chronic inflammation or other serious eye conditions, and prompt diagnosis and treatment are essential to prevent vision loss and other complications.

**Correct Answer: C. Uveitis.**