A person with normal sight has a 180 degree visual field, represented below in light gray. The small white area in the middle, about 3 degrees of visual field overall, are the actual visual field test results from a 41 year old male affected with Choroideremia. This small bit of sight will continue to decrease in size until all sight is lost.
A field of vision image for an individual affected by Choroideremia


Thanks to the Peli lab, Schepens Eye Institute, Boston, for this comparison picture.


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