Anterior Segment Swept Source Optical Coherence Tomography Imaging And Assesment Of Pterygium.
Published 2024 - 42nd Congress of the ESCRS
Reference: PO267 | Type: Free paper | DOI: 10.82333/0ftx-8y41
Authors: Houda Brarou* 1 , Soundouss Sebbata 1 , Samah Sadiki 1 , Manal Bouggar 1 , Yasmine Bensaoud 1 , Mohamed Boukssim 1 , Mounir Belmlih 1 , Yassine Mouzari 1 , Abdelbare Oubaaz 1
1Ophthalmology,Mohamed V military hospital,Rabat,Morocco
Purpose
To study the anatomic features of the pterygium and its invasion of the corneal layers using high-resolution anterior segment swept source optical coherence tomography (AS-OCT).
Setting
Monocenter study conducted at the ophtalmology department of the Mohamed V military hospital in Rabat
Methods
A prospective cross-sectional study of 56 eyes of 36 patients presented with pterygium was conducted in the Ophthalmology Department of the Mohamed V military hospital. All subjects underwent complete ophthalmologic examinations, including AS-OCT. The limbus–apex distance, vertical height at the limbus, invasion of the Bowman's and stromal layers, and other morphologic structures of the pterygium tissue were analyzed.
Results
We examined 56 eyes including 46 eyes with primary pterygia, 10 eyes with recurrent pterygia. The mean age of the patients was 41, 73 (20–68) years. The mean apex–limbus distance was 2327, 77 ± 1026μm, and the mean vertical height at the limbus was 4793.89 ± 1524, 10μm. A space was observed beneath the pterygium tissue in 32 (57, 14%) eyes. The mean width and height of this space were 1696.33 ± 548,13μm and 251.70 ± 85.88μm, respectively. Invasion of the Bowman's layer was apparent in 50 (89, 28 %) eyes, and invasion of the stromal layer was detected in 25 (45%) eyes. Over half of the eyes exhibited space beneath the pterygium.
Conclusions
Anterior segment OCT provided us with high-resolution images of the pterygium structure and showed clearly the anatomical relationship between the pterygium and the corneal tissues