Floppy iris syndrome Save

What is Floppy Iris Syndrome?

Floppy iris syndrome (FIS) is a condition that can occur during cataract surgery and other types of intraocular surgery. It is characterized by an excessive degree of pupil dilation and an inability of the iris to contract back to its normal size after the procedure. This can lead to complications during surgery, such as an increase in the risk of vitreous loss, traumatic cataract formation, and postoperative intraocular pressure (IOP) elevation. It is important for ophthalmologists to be aware of this condition and to take the necessary steps to prevent it during surgery.

What Causes Floppy Iris Syndrome?

FIS is caused by a number of factors, including pre-existing conditions such as age-related miosis or small pupils, certain medications such as alpha-blockers or anti-arrhythmics, and intraocular inflammation or edema. Other factors that can increase the risk of FIS include the use of intraocular lenses with a large optic, the use of a high level of ultrasound power, and the use of viscoelastic devices during surgery.

Signs and Symptoms of Floppy Iris Syndrome

FIS is typically diagnosed during surgery and is characterized by an inability of the pupil to remain constricted, with the iris flapping back and forth during the procedure. This can lead to complications, such as an increase in the risk of vitreous loss, traumatic cataract formation, and postoperative IOP elevation.

Diagnosis and Treatment of Floppy Iris Syndrome

FIS is typically diagnosed during surgery, and the diagnosis is typically confirmed by ultrasound biomicroscopy. Treatment for FIS typically involves the use of pupilloplasty, which is a procedure that involves the use of a laser to constrict the pupil. Other treatments, such as iris suturing or iris hooks, may also be used in some cases.

Preventing Floppy Iris Syndrome

Ophthalmologists should be aware of FIS and take the necessary steps to prevent it during surgery. This includes optimizing preoperative conditions by avoiding medications that can increase the risk of FIS, using smaller optic intraocular lenses, and using lower levels of ultrasound power. In addition, ophthalmologists should be prepared to perform pupilloplasty in cases of FIS.

Conclusion

Floppy iris syndrome (FIS) is a condition that can occur during cataract surgery and other types of intraocular surgery. It is important for