Plateau iris is commonly associated with which of the following?

Plateau iris is a specific anatomical configuration of the anterior segment of the eye that can predispose individuals to glaucoma. It is characterized by a flat or plateau-like configuration of the peripheral iris leading to a narrow angle between the iris and the cornea. This condition is particularly associated with chronic angle closure glaucoma, where the drainage angle of the eye becomes blocked over time, leading to increased intraocular pressure.

In plateau iris, even when the pupil is dilated, the focused position of the iris doesn't change significantly, keeping the angle closed. This can result in a gradual increase of pressure in the eye and subsequent vision problems if left untreated.

In contrast, the other options, such as older adults, high myopia, and corneal edema, are not defining features or common associations with plateau iris. Older adults may develop different types of glaucoma, high myopia has its own set of risks including retinal problems, and corneal edema is a separate condition not directly related to the anatomical configuration associated with plateau iris. Understanding these associations is crucial for proper diagnosis and management of glaucoma in patients with identifiable risk factors.