Electrically evoked responses in normal and blind eyes

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  • HATAYAMA RAN
    Department of Ophthalmology, Juntendo University School of Medicine
  • KENJI YANASHIMA
    Department of Ophthalmology, Juntendo University School of Medicine
  • NAKAJIMA AKIRA
    Department of Ophthalmology, Juntendo University School of Medicine

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  • 光覚を感知する義眼の試作についての基本的な実験
  • --特にEERの反応について--

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To investigate the possibility for clinical use of a light-sensitive prosthesis, electrically evoked responses (EER) were evaluated in normal and blind eyes using cornea cutaneous, cornea-conjunctiva and conjunctiva-conjunctiva electrodes. Normal eyes exhibited similar EER patterns with the different stimulating electrodes. No phosphene or EER was detected in the eyes blind from various causes. An electrically palpitative sensation could be induced in blind eyes by a stimulating current. Determination of EER was considered to be useful for evaluating light-sensitive prostheses.

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