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Year : 1989  |  Volume : 37  |  Issue : 4  |  Page : 184-188

VER in optic neuritis

Dr. R.P. Centre for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi - 110 029, India

Correspondence Address:
Vimala Menon
Dr. R.P. Centre for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi - 110 029
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Source of Support: None, Conflict of Interest: None

PMID: 2638307

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A prospective study was carried out on 27 patients with optic neuritis. Besides detailed clinical examination, visual evoked responses (VER) were studied utilising the checker board pattern reversal and flash stimuli. The recording with the 30 minute check size was found to be the most consistent both for the controls and the patients. Flash evoked VER was most useful in determining the wave form in cases with severe disruption of the visual pathways. Neither the implicit time nor the amplitude of the VER could be directly correlated to the visual acuity changes or other clinical parameters. Implicit time offered a more reliable criterion for evaluation as compared to the amplitude in patients with optic neuritis. The VER recording helps in serial follow-up of a patient and can indicate previous attacks suffered by the patient.

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