Modern capabilities and clinical application of SS-OCT CASIA2 in the examination of the anterior segment of the eye

Modern swipe-source OCT (SS-OCT), in particular the CASIA2 system, has become a key tool in ophthalmology for visualizing the anterior segment of the eye. Its technological advantages, including a wavelength of ~1310 nm and high scanning speed, ensure deep penetration and high image quality of the cornea, anterior chamber angle, iris and lens. This allows us to move from qualitative assessment to accurate quantitative biometrics. The method is especially important for the diagnosis and monitoring of angleclosure glaucoma, objectively assessing the degree of iridotrabecular contact using the ITC index, which helps in choosing between laser iridotomy and lens removal. Accurate measurements of the lens parameters (thickness, curvature, position) reveal its role in the pathogenesis of the disease. The use of OCT is also effective for monitoring changes after intravitreal injections and noninvasive visualization of lacrimal tracts. A promising direction is the integration of quantitative OCT data with machine learning algorithms to personalize treatment. Thus, SS-OCT significantly expands the possibilities of diagnosis, intervention planning, and outcome prediction in refractive, cataract, and glaucoma surgery.