What is stereoscopy?
Stereoscopy is a technique capable of collecting three-dimensional visual information and/or creating the illusion of depth by means of a stereographic image, a stereogram, or a 3D (three-dimensional) image.
What does it consist of?
This technique consists of presenting a semi-image, i.e. an image from one perspective slightly different from the other, to each eye. In this way, the combination of both half-images is visualized as the usual way we see. In this case, images of the inside of the patient’s body are displayed.
Why is it performed?
Stereoscopy can be applied to various fields. In the case of medicine, it helps to visualize the width, length and depth of images of the interior of the body from images obtained by CT or Nuclear Magnetic Resonance, both for teaching or research and for diagnosis and interventions.
Thus, stereoscopy helps to reliably detect foreign bodies, malformations, the distance between organs, extending the information provided by a traditional X-ray.
Preparation for stereoscopy
What does the examination feel like?
Meaning of abnormal results
As explained above, stereoscopy helps to detect abnormalities or foreign bodies inside the patient. In addition, it can also be applied to the diagnosis of eye diseases.