Anterior segment OCT (AS-OCT) enables the precise visualization of anterior segment structure; thus, it can beused in various corneal and ocular surface disorders.
Horizontal OCT section of the normal cornea: epithelium (a), Bowman’s layer (b), corneal stroma layer (c), Descemet’s membrane (d), and endothelium (e).
AS-OCT can provide high-resolution images of the anatomical relationship between the corneal tissues and pterygium and the pinguecula. It enables measurement of anterior segment structures such as corneal thickness, anterior chamber depth and anterior chamber angle. In addition to preoperative and post‐operative assessment, ASOCT can be used intraoperatively which can help in the intraoperative diagnosis and subsequent surgical decision making.