The Cure of Imperfect Sight by Treatment
Without Glasses - online book

The Original Bates Method, for correcting vision defects

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The Role of the Fourth Nerve            51
No. 3.-When the third nerve was covered with cotton soaked in a normal salt solution, the application of the faradic current to the cotton produced accommodation. When the cotton was soaked with atropine sulphate in a normal salt solution, such application produced no accommodation, but the stimulation of the fourth nerve did produce it.
No. 4.-When both nerves were covered with cotton soaked in atropine sulphate in a normal salt solution, the application of electricity to the cotton produced no accommodation. When the parts had been washed with a warm salt solution electrical stim ulation of either nerve always produced accommodation. The nerves were alternately covered with the atropine-soaked cotton and then washed with the warm saline solution for an hour, the electricity being applied in each condition with invariably the same result. Accommodation could never be produced by elec trical stimulation when the nerves were paralyzed with the atropine, but always resulted from the stimulation of either or both when they had been washed with the salt solution. The experiment was performed with the same results on many rab bits and dogs.
ways resulted in the normal eye. When the origin of either nerve was covered with a small wad of cotton soaked in a two per cent solution of atropine sulphate in a normal salt solution, stimulation of that nerve pro duced no accommodation, while stimulation of the un-paralyzed nerve did produce it. When the origin of both nerves was covered with cotton soaked in atropine, accommodation could not be produced by electrical stim ulation of either or both. When the cotton was removed and the nerves washed with normal salt solution, elec-