Definitions

Papilloedema - Swelling of the head of the optic nerve, also known as Optic Disc Oedema, which is visible when the eye is examined by an Optician or Doctor using a opthalmascope. Papilloedema usaually indicates a rise in the pressure of CSF in the skull.
Photophobia - An uncomfortable sensitivity or intolerance to light.
CT Scanning - A diagnostic technique in which the combined use of a computer and x- rays passed through the body at different angles produces clear cross - sectional images (slices) of the tissue being examined. CT (Computer Tomography) Scanning - also known as CAT (Computer Axial Tomography) Scanning or whole body scanning provides clearer and more detailed information than X-rays used by themselves. CT Scanning also has the advantage of tending to minimize the amount of radiation exposure.
MRI - Magnetic Resonance Imaging is a diagnostic tecnique that provides high - quality cross sectional or three - dimentional images of organs and structures within the body without using X-rays or other radiation.
Optic Nerve Fenestration - An operation where the optic nerve is slit to allow the fluid to drain away.