Surgical Outcomes of Penetrating Canaloplasty in Patients with Uncontrolled Posner-Schlossman Syndrome: A Prospective Study

ABSTRACT

Purpose

To evaluate the surgical outcomes in patients with Posner-Schlossman syndrome (PSS) at one year.

Methods

A prospective interventional study in PSS patients with penetrating canaloplasty. Main outcome measure was success rate (6 mmHg≤ intraocular pressure (IOP) ≤ 21 mmHg) with or without medications.

Results

Thirteen eyes in 13 patients with PSS underwent complete catheterization. The mean IOP and medications (Meds) were reduced to 16.1 ± 4.8 mmHg on 0.5 ± 1.0 Meds at 12 months. Complete and qualified success rates were 61.5% and 84.6% at 12 months. The postoperative recurrent rate of PSS was 69.2%, the mean peak IOP during attacks and episodes were decreased to 26.7 ± 8.3 mmHg and 1.7 ± 2.0 times respectively. Transient IOP spike (61.5%) and hyphema (38.5%) were the two most common postoperative complications.

Conclusion

Penetrating canaloplasty achieves a high success rate in PSS without serious complications.

KEYWORDS:

• Bleb-independent
• glaucoma
• internal surgery
• penetrating canaloplasty
• Posner-Schlossman syndrome

Disclosure statement

No potential conflict of interest was reported by the authors.

Summary statement

We report a prospective study to demonstrate the good outcome of penetrating canaloplasty in patients with uncontrolled PPS.

Additional information

Funding

This study was supported by Key R&D Program of Zhejiang [2022C03112] and National Key R&D Program of China [2020YFC2008200]. All authors have no conflict of interest to declare; National Key Research and Development Program of ChinaNational Key Research and Development Program of China [2020YFC2008200];