Iridodonesis

Iridodonesis is a medical condition characterized by the trembling or oscillation of the iris in the eye. This condition is typically observed when there is a lack of support for the iris, often due to a dislocated or subluxated lens or an aphakic eye (an eye without a lens).

Causes

Iridodonesis is most commonly caused by a dislocated or subluxated lens. This can occur due to a variety of reasons, including trauma, cataract surgery, or certain genetic disorders such as Marfan syndrome. In some cases, iridodonesis can also be a sign of an aphakic eye, which is an eye that lacks a lens. This can occur as a result of surgery, injury, or certain medical conditions.

Symptoms

The primary symptom of iridodonesis is the visible trembling or oscillation of the iris. This can often be observed during an eye examination. Other symptoms can vary depending on the underlying cause of the condition. For example, if the iridodonesis is caused by a dislocated lens, the individual may also experience blurred vision, double vision, or glare.

Diagnosis

Iridodonesis is typically diagnosed during a comprehensive eye examination. The eye care professional may observe the trembling of the iris directly, or they may use specialized equipment to examine the structures of the eye in more detail. Additional tests may be performed to determine the underlying cause of the condition.

Treatment

The treatment for iridodonesis typically involves addressing the underlying cause of the condition. This may involve surgery to reposition or replace a dislocated lens, or treatment for any underlying medical conditions that may be contributing to the problem. In some cases, no treatment may be necessary if the iridodonesis is not causing any symptoms or vision problems.

See also

• Iris (anatomy)
• Crystalline lens
• Aphakia
• Marfan syndrome