The PreserFlo MicroShunt in the Context of Minimally Invasive Glaucoma Surgery: A Narrative Review

Emil Saeed, Kinga Gołaszewska, Diana Anna Dmuchowska, Renata Zalewska and Joanna Konopińska ()
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Emil Saeed: Department of Ophthalmology, Medical University of Bialystok, Kilinskiego 1 STR, 15-089 Bialystok, Poland
Kinga Gołaszewska: Department of Ophthalmology, Medical University of Bialystok, Kilinskiego 1 STR, 15-089 Bialystok, Poland
Diana Anna Dmuchowska: Department of Ophthalmology, Medical University of Bialystok, Kilinskiego 1 STR, 15-089 Bialystok, Poland
Renata Zalewska: Department of Ophthalmology, Medical University of Bialystok, Kilinskiego 1 STR, 15-089 Bialystok, Poland
Joanna Konopińska: Department of Ophthalmology, Medical University of Bialystok, Kilinskiego 1 STR, 15-089 Bialystok, Poland

IJERPH, 2023, vol. 20, issue 4, 1-15

Abstract: Recently, the quest for novel glaucoma surgical techniques and devices has been underway. Trabeculectomy remains the gold standard, but it requires the implantation of glaucoma drainage devices and frequent follow-ups, and it also carries a high risk of serious complications. The need for less invasive and safer procedures has led to the development of minimally invasive glaucoma surgery (MIGS), particularly for patients with mild–to–moderate disease. Among them, minimally invasive bleb surgery seems to be effective in classical glaucoma surgery, while maintaining MIGS benefits. The relatively new PreserFlo ® MicroShunt (Santen, Osaka, Japan) is registered in Europe. It was released in 2019 for the treatment of patients with early–to–advanced open-angle glaucoma, where intraocular pressure (IOP) remains uncontrolled while on maximum tolerated medication and/or where glaucoma progression warrants surgery. This review focuses on the place of the PreserFlo MicroShunt, characterized by ab externo implantation, among MIGS procedures, discussing its advantages and disadvantages. The mechanisms of action, technical aspects, efficacy, and safety issues are summarized. The surgical technique, its efficacy, and safety profile are described, and directions for future studies are indicated. The PreserFlo MicroShunt ensures a high safety profile, minimal anatomical disruption, meaningful IOP-lowering effect, and ease of use for patients and physicians.

Keywords: aqueous humor; cytostatic agents; open-angle glaucoma; reoperation; surgical techniques; trabeculectomy (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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