A physician's notes on ophthalmology / by J. Hughlings Jackson.
- Jackson, John Hughlings, 1834-1911.
- Date:
- [1874]
Licence: Public Domain Mark
Credit: A physician's notes on ophthalmology / by J. Hughlings Jackson. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![lcptie or epileptiform seizures, may have, as a first symptom (so-called aura), a colour, or “ all manner of colours,” before his eyes. It is well, when the patient is intelligent, to ask wliich colour is first developed, and the order in which they come. Theoretically, one would expect that the first colour to be de- veloped would be red, because it is the one first lost in cases of colour-blindness. For, returning to paralytic symptoms for an analogy, we find that those very movements which arc first lost in destruction of nervous organs, are those which are first de- veloped in epileptic discharges of nervous organs. Dr. Hughlings Jackson thinks, so far as limited and recent inquiries enabled him to judge, that red is usually the colour first developed when colour-development is a “ warning ” of an epileptic seizure. It is not always so; one of bis patients has blue vision before severe epileptic fits; and she has had attacks of the blue* vision, fol- lowed by temporary and complete darkness, without anything further. To ask patients to note the order of development of colours would, however, avail little in the majority of cases; probably there is, in most cases, a development of colour, rapidly becoming complex (“rainbow”). The order of frequency in which the higher senses suffer in epilepsies is, Dr. Hughlings Jackson believes, sight, smell, hearing. An aura of taste, is very rare; a “sting,” or other non-gustatory aura, from the tongue, is not so uncommon. It is not easy to say where touch comes. NOTE ON THE DIAGNOSTIC VALUE OF PARALYSIS OF THE THIRD NERVE WITH HEMIPLEGIA. Dr. Hughlings Jackson contributes the following to the Hospital Reports of the Lavcet, September 6, 1873, under the heading Loudon Hospital:— “ It is well known that a lesion of the crus cerebri can pro- duce paralysis of the third nerve on the same side as the lesion, and of the face, arm, and leg on the other side. But it would be a great mistake to suppose that when we find paralysis of the third nerve on one side, and of the face, arm, and leg on the other, there is necessarily disease of the crus cerebri. In a case [at the London Hospital] manifestly of intracranial syphilis, there was the association of symptoms mentioned; but it was pointed out that, as the ocular palsy came on at a different time from the hemiplegia, there were no doubt two lesions—syphilitic disease of the right third nerve (a neuroma), and disease of the right side of the brain. At the autopsy the two lesions were found. * Blue, according to Maxwell, is the fundamental colour most removed from red. Helmholtz adopts the theory of Thomas Young, that the three fundamental colours arc red, green, and violet.](https://iiif.wellcomecollection.org/image/b2235525x_0029.jp2/full/800%2C/0/default.jpg)
