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OCT can be used for anterior segment imaging
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Optical coherence tomography can be used as a non-contact means for visualizing the anterior chamber, according to a small study by researchers in England. The technology may be particularly helpful for assessing glaucoma patients for whom gonioscopy cannot be performed or is difficult to interpret, the authors noted.
Alexander C. Day, MD, and colleagues at Western Eye Hospital, London, evaluated the utility of optical coherence tomography (OCT) for imaging the anterior chamber angle in patients with different angle configurations.
OCT was primarily designed for imaging the posterior segment, the authors noted.
The researchers used the Zeiss Stratus OCT model 3000 to image the anterior segments of 26 eyes of 26 patients. Of these, pre-imaging examinations showed that 16 eyes had abnormal angle configurations, including either narrow or closed angles and plateau irides, and 10 eyes had normal angle configurations, according to the study.
"In all cases, OCT provided high-resolution information regarding iris configuration," the authors said in the study.
"The [anterior chamber angle] itself was clearly visualized in patients with narrow or closed angles, but not in patients with open angles," they noted.
The study is published in the June issue of Acta Ophthalmologica Scandinavica.