Electroretinogram and visual field changes in a case of birdshot chorioretinopathy.

Doc Ophthalmol

Augenärztliche Gemeinschaftspraxis, Bad Cannstatt, Stuttgart, Germany.

Published: April 2017

Purpose: This case report explores the role of the visual field perimetry and electroretinogram (ERG) in cases of non-infectious uveitis in the assessment and monitoring of retinal function and response to treatment.

Methods: A 59-year-old Caucasian female presenting with bilateral posterior uveitis newly diagnosed as birdshot chorioretinopathy (BSCR) presenting with bilateral decrease in visual acuity and cystoid macular edema, as well as a paracentral scotoma in the right eye. The diagnosis and follow-up of the case was done using visual field perimetry, optical coherence tomography (OCT), and ERG.

Results: Baseline ERG showed a marked decrease in the amplitudes of the scotopic and photopic responses and a delay of peak times mainly in the right eye. Mycophenolate mofetil at 2 g/day and oral prednisolone at 1 g/kg/day were administered with gradual tapering of the corticosteroids. After 5 months, there was a noticeable improvement in the visual acuity, macular edema in OCT, and an obvious increase in the amplitudes of the ERG associated with a decrease in peak times, particularly in the 30 Hz photopic 3.0 Flicker of the right eye.

Conclusion: This case report highlights the importance of the peak time and wave amplitudes of the 30 Hz photopic DA 3.0 Flicker as being a sensitive parameter in the diagnosis and follow-up of BSCR.

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Source
http://dx.doi.org/10.1007/s10633-017-9581-2DOI Listing

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