Optical Coherence Tomography (OCT) is a relatively new imaging technique that can be used to detect or even prevent certain eye diseases. OCT machines work similar to an ultrasound but use infrared light waves to measure distances of eye structures. Images are captured at different depths and the lines are then combined to produce a cross-sectional image.
OCT machines can generate images of the retina and can bypass the optics of the eye allowing for almost 25 times better resolution than other imaging machines. This better resolution allows opticians to see the layers and details of the retina. They show us minute details inside the eye, helping us to detect and treat any possible eye diseases as soon as possible.