Contact Us

Envisu C-Class

Archived Product
This item has been phased out and is no longer available. Please contact us using the button below to enquire about recent alternative products that may suit your needs.

OCT Envisu

Show answer What is Optical Coherence Tomography?

Optical Coherence Tomography, abbreviated OCT, is a non-invasive, contact-free imaging technique to detect and monitor morphological changes of ocular tissue.

Show answer What is SDOCT?

Spectral Domain Optical Coherence Tomography (SDOCT) is a particular implementation of OCT that collects all of the wavelengths of light at the same time using a specially designed spectrometer. Through judicious design of the spectrometer, selection of the light source, and implementation of mathematical techniques, SDOCT systems can be tailored to provide exceptional images for a wide range of research and clinical applications.

Show answer How does OCT work?

OCT employs interferometry, in which waves are superimposed in order to extract information, to create cross-sectional images. Using low-power, near-infrared light, the OCT system generates high-resolution, volumetric images of the internal tissue microstructures of cornea and retina.

OCT measures the reflectivity of tissue microstructures as a function of depth. A single vertical scan through the depth of tissue is called an A-scan. A 2D tomographic slice (or a series of A-scans), is called a B-scan, as in ultrasound. Multiple adjacent B-scans create a 3D volume. B-scans provide in vivo observation of ocular tissues, including all retinal layers. Longitudinal studies quantify retinal layer thickening and thinning.

Scroll to top