Progression in application of optical coherence tomography in ocular anterior segment examination

VernacularTitle:光学相干断层扫描技术在眼前节结构应用的新进展
Author: Peng, ZHANG
Publication Type:Journal Article
Keywords: Tomography,optical coherence; Anterior eye segment/ pathology; Diagnostic technique,ophthalmological
From: Chinese Journal of Experimental Ophthalmology 2014;32(4):380-384
CountryChina
Language:Chinese
Abstract: Optical coherence tomography (OCT) is a technology that imaging the ocular structure by the interference of light.OCT is invented and applied in the examine and measure of the retina and choroid.However,the development of spectrum domain make the study of ocular anterior segment structure possible.Anterior segment OCT (AS-OCT) can image the tissue structures of the cornea,anterior chamber,pupil,iris,etc.on the same picture.Also,AS-OCT can be used to measure the corneal surface and curvature after excimer laser in situ keratomileusis,the examination of the angle,iris,ciliary body in glaumatous eyes,the observation of dynamic alteration of the filtering bleb following antiglaucoma surgery and the evaluation of ocular anterior segment tissue after eye trauma.AS-OCT examined at a non-contact,non-invasive way with higher resolution and higher speed.In addition,AS-OCT offers the quantitative analysis of the ocular anterior segment.The clinical application,advantages and disadvantages,prospect of AS-OCT in ophthalmology were reviewed in this paper.