Iritis, also referred to as anterior uveitis, is a condition characterized by inflammation in the iris, which is the colorful ring encircling the pupil in the eye. The iris is one of the pigmented parts of the eye’s internal structures, collectively called the uvea, which includes the ciliary body, iris, and choroid. Among the various types of uveitis, iritis is the most common and can affect either one or both eyes. Neglecting treatment for iritis can result in severe complications, potentially leading to vision loss. It is crucial for individuals experiencing symptoms of iritis to seek immediate attention from an eye specialist or ophthalmologist.
Functions of the Iris
The iris, positioned between the cornea and the lens, exhibits a varied spectrum of colors, ranging from light blue to dark brown. It plays a vital role in regulating the amount of light that enters the eye through the pupil, the black part within the iris. This iris is an integral part of the uvea, which constitutes the middle layer of the eyeball, comprising the ciliary body, iris, and choroid. Apart from determining an individual’s unique eye color, the iris also governs the size of the pupil. In low-light conditions, one of the iris muscles dilates the pupil, whereas in bright light, another muscle constricts the pupil.
Symptoms of Iritis
Recognizing the signs of iritis is crucial for early diagnosis and treatment. Iritis generally emerges suddenly and can impact either one or both eyes. Some common symptoms of iritis include redness, decreased or blurred vision, sensitivity to light (known as photophobia), and eye pain which can manifest as a dull ache. It is worth noting that if only one eye is affected, the pupil in that eye may appear smaller compared to the unaffected eye.