To evaluate Visual Evoked Potentials in hyperthyroid females attending a tertiary care hospital: A Case Control study

Background: Thyroid disease is a known cause of nervous system dysfunction. Hypothyroidism affect both the electroencephalogram (EEG) and the visual evoked potential (VEP) to flash stimulation, the feature of note in the latter is being a delay in conduction. VEP are electrical potential difference recorded from the scalp in response to visual stimuli which is simple, non–invasive electro physiological study.Aim & Objective: Aim is to evaluate conduction in visual pathway of hyperthyroid females to compare with normal healthy females.Objective is to use Visual Evoked Potentials to assess conduction in hyperthyroid females.Materials&Methods:Recordingdone Electrophysiology Laboratory,Dept.Physiology. Statistical analysis was done by Student unpaired‘t’ test.Results: There is reduction in latency of P 100 wave which is statistically not significant. Conclusion:concluded that hyperthyroidism per se has little effect on the VEP and any observed effect on these potentials is probably due to other factors