Retinitis Pigmentosa Diagnosis
If you have poor night vision or a loss of side vision, or if there is a history of retinitis pigmentosa in your family, your ophthalmologist will conduct a comprehensive eye exam to determine if you have retinitis pigmentosa. Your ophthalmologist will dilate your eyes to look at the back of them for signs of disease.
Your ophthalmologist 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 ophthalmologist may use in diagnosing RP is a visual field test (see photo). In this procedure, you look at a fixed point and then signal when an object appears in your side vision.