Stereo Disc Photography
Stereo disc photography is a diagnostic imaging test used to detect problems in the optic nerve head (region where the optic nerve connects to the retina). It is most commonly used to detect glaucoma (a condition characterized by the damage of the optic nerve in the eye) and ocular hypertension (high pressure in the eye). The technique helps measure the dimension (size and shape) of the optic nerve head and the depth of the cup-shape that it forms. It also reproduces and records the natural colours of the nerve head.
The photographs may be taken sequentially from different angles to provide clear and high resolution images with depth. The images can be captured on a colour slide film or viewed digitally on a computer monitor.