OCT is a non-invasive and non-contact imaging method capable of acquiring cross-sectional retinal images, the vitreous and the optic nerve. Anterior segment OCT is capable of imaging morphology of the anterior section of the eye (i.e. the anterior chamber, the cornea, or the lens). OCT is analogous to ultrasonography, however light waves are used for imaging of ocular anatomy instead of sound waves. The eye is scanned transversely using a light beam during an examination. Intensity-based cross-sectional images can be imaged and evaluated using a false color or grey scale image.
Indications for OCT imaging:
- Macular pathology like central serous retinopathy, macular holes, epiretinal membranes, vitreomacular traction or macular edema
- Assessment of treatment response and disease progression, i.e. retinal thickness measurements in neovascular AMD
- Differentiation of retinoschisis and retinal detachment of longer duration
- Retinal nerve fiber layer (RNFL) anaylsis in patients with glaucoma