H15-H22: Disorders of sclera, cornea, iris and ciliary body

H22: Disorders of iris and ciliary body in diseases classified elsewhere

The H22 disorders are a group of conditions that affect the iris and ciliary body of the eye, but these disorders are typically symptomatic of other diseases. The iris is the colorful ring around the pupil, responsible for controlling how much light enters the eye, while the ciliary body produces the fluid in the eye and helps focus vision. In H22 disorders, these critical eye structures may become inflamed, scarred, or malfunction due to underlying diseases such as diabetes, autoimmune conditions, or infections. Common symptoms might include eye redness, blurred vision, eye pain, and sensitivity to light. The progression of these disorders is variable, depending on the severity of the underlying condition. If left untreated, these disorders can potentially lead to vision loss or blindness.