Optical Coherence Tomography: Introduction, History and Current Status
Optical coherence tomography (OCT) is a non-contact, non-invasive imaging technique used to acquire high-resolution cross-sectional images of the ocular structures. During the last decade, this technique has been rapidly adopted into clinical practice and has become an essential tool for both diagnosis and monitoring of glaucoma. OCT is able to acquire concurrent images of the optic nerve head, retinal nerve fiber layer and macular inner layers and provides the clinician with various valid parameters with low variability. As a highly reproducible structural test, OCT has enabled ophthalmologists to detect glaucoma in the very early stages and has improved the quality of disease monitoring. This chapter summarizes the history and role of OCT in ophthalmology with particular emphasis on glaucoma.
KeywordsOptical coherence tomography OCT OCT history OCT glaucoma Time domain Spectral domain Swept source
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