Capability Of Anterior Segment Optical Coherence Tomography Anterion In Identifying Absorbable Spacers At Different Postoperative Times.
Published 2024 - 42nd Congress of the ESCRS
Reference: PP18.05 | Type: Free paper | DOI: 10.82333/sfpz-vy58
Authors: Tetiana Goncharova Simón* 1 , Armand Pairó Salvador 1 , Yann Bertolani Fournier 1 , Paul Buck Espel 1 , David Oliver Gutierrez 1 , Elena Ros Sanchez 1 , Laura Sánchez Vela 1 , Marta Castany Aregall 1 , Miguel Angel Zapata Vitori 1
1Ophtalmology,Valle Hebrón,Barcelona,Spain
Purpose
Utilizing anterior segment optical coherence tomography (OCT-SA) with Anterion (Heidelberg), we examine the visualization and durability of subconjunctival spacers in filtering surgeries, encompassing Ologen, Lystypt, Healaflow, and Duragen, over diverse postoperative time intervals.
Setting
Valle Hebrón
Methods
On one hand, filtering surgeries from the last year have been analyzed, in which various spacers (Healaflow, Lyostypt, and Duragen) were used. Patients underwent immediate post-surgery OCT-SA to categorize the implant and later assessments to evaluate its longevity.
On the other hand, patients from the past 5 years who underwent filtering surgery with Ologen implantation have been identified. They also underwent OCT-SA to identify the persistence of the implant and its characteristics.
Results
At the level of Anterion OCT-SA, the Ologen implant is observed as spongy and porous material, with low reflectivity. Its persistence has been observed up to 6 years after surgery. According to the literature, the Ologen device typically degrades completely within a period of 6 months, thus the aforementioned findings could indicate a variation in its biodegradable properties.
Spacers such as Healaflow, Lyostypt, and Duragen have also been characterized. Healaflow is identified as dispersed and trabeculated material, with low reflectivity and rapid absorption (less than 6 months). Lyostypt and Duragen are identified as compact materials with medium reflectivity, with Lyostypt lasting less than 6 months and Duragen lasting more than 6 months.
Conclusions
We have determined that OCT-SA is invaluable in glaucoma management, playing a pivotal role in assessing filtration bleb functionality. It facilitates a comprehensive analysis, merging qualitative and quantitative measures, and has the potential to investigate the lifespan of absorbable filler implants (such as Ologen, Healaflow, Lyostypt, and Duragen). These insights could significantly enhance surgical prognosis.