Unanticipated prognosis for a patient with type 2 Usher syndrome

ConclusionsThe patient demonstrated that the absence of visual symptoms and favorable findings on functional testing on initial presentation might yet belie a future for austere visual loss. Caution is thus warranted when predicting a visual prognosis in such a patient. Further, the value in electroretinographic testing for diagnosis is demonstrated. (Source: Documenta Ophthalmologica)

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