PMC3162297_01
Fundus photograph and fluorescein angiography appears normal (left panels). Electroretinogram shows marked loss of cone function in both eyes (right panels).
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Intraocular pressure, anterior segment, ocular media and fundus, including fluorescein angiographic examination showed no abnormalities (Figure 1). The 30 Hz flicker ERG showed similar results, and the maximal response was abnormal, with reduced a-wave and b-wave amplitudes as well as oscillatory potentials (Figure 1).
Static perimetry (full threshold 10-2 Humphrey visual field examination) shows central scotoma of right eye.
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Static perimetry (full threshold 10-2 Humphrey visual field examination) showed relative central scotoma of the right eye (Figure 2).
Fifteen months after initial visit. Goldmann perimetry showed limited recovery after oral prednisolone administration.
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One month thereafter, limited recovery was observed in the patient as revealed by Goldmann perimetry (Figure 3).