Anterior Segment Optical Coherence Tomography in Diseases Of The Ocular Surface And Cornea
I. Introduction : Anterior segment optical coherence tomography (ASOCT) is a sophisticated non-contact imaging device that produces high-resolution images for detailed assessment of the structures of the ocular surface and anterior chamber in various disease conditions. Starting from the earlier generation time-domain devices first described in 1991 by Huang et al [1] to the current Fourier-domain OCT devices, the technological advancement in this device has improved the diagnostic ability tremendously. This imaging modality has evolved into a highly precise tool for clinical diagnosis and management as well as in research and understanding disease pathology. In this review, we describe the evolution of ASOCT, its technology in brief and focus on highlighting the various clinical applications with examples. While Izzat et al first introduced the use of AS-OCT for imaging the anterior segment of the eye [2], it is well known that the OCT initially evolved as a tool for retinal imaging.

