Optic Nerve/Retinal Topography
This uses a scanning laser to measure nerve fiber layer thickness, as a way to gauge nerve fiber function, particularly in diseases affecting the optic nerve. Decrease in the thickness of the nerve fiber layer is found in patients with MS and can be used to determine progression over time of the disease contributing to loss of nerve fibers. The machines are called OCT, GDX, HRT among others.

The Instrument

The Results

The Explanation: RNFL Loss

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