Your Eye M.D. may use an electroretinogram to help diagnose retinitis pigmentosa. This is where electrodes are painlessly placed on the cornea (the clear front window of the eye) and around the eye to measure how retinal cells respond to flashes of light. The results will show if the cells are responding properly.

Another test your Eye M.D. may use in diagnosing RP is a visual field test (see photo above). In this procedure, you look at a fixed point and then signal when an object appears in your side vision.

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