- A procedure in which a small section of peripheral iris is excised through a limbal incision.
- Very effective and safe surgical procedure for glaucoma treatment.
- Some disadvantages:
- Operating room procedure
- May be complicated by bleeding, infection, wound leak, incomplete iridectomy, zonular or lens disruption
- Costlier than laser iridotomy
- Longer postoperative recovery time
- Creating a small opening at the peripheral iris (usually between middle and peripheral thirds of the iris) using Neodynium:YAG and/or argon laser.
- More commonly performed as a safe and effective prophylaxis and/or treatment of narrow angle glaucoma.
- Clinic or office procedure.
- Reduces the possible surgical complications such as wound leak, bleeding and infections.
- Procedure of choice in angle-closure or narrow angle glaucoma.
- Some conditions that preclude the undertaking of this procedure are:
- Significant cornea cloudiness
- Exteremely narrow angle with Iris tissue very near corneal endothelium
- Repeatedly failed or closed iridotomy
- Uncooperative patient