Skip to main content
×
×
Home

3. German Retrospect.: Changes in Visual Power in Nervous Diseases.

Extract

Dr. L. Finkelstein has made some investigations in the clinique of Professor Mierzejewski with a view to ascertain what are the changes in visual power amongst those affected by disease of the nervous system. His results were communicated to the Psychiatric Association of St. Petersburg (” Neurologisches Centralblatt,” No. 1, 1886). He has especially investigated the power of sight in patients suffering from epilepsy, hysteria, neurasthenia, and chronic alcoholism. With the help of the perimeter he has found, along with the initial symptoms of an approaching epileptic attack, such as giddiness, headache, palpitation, that there is a narrowing of the field of vision in the retina of both eyes. Sometimes this takes the form of hemiopia, sometimes of concentric diminution. This narrowness of the field of vision is greatest after the attack, and the capacity for colours is unequal in different areas of the retina: thus the area in which green light is seen is the smallest; it is larger for red and larger still for blue. Dyschromatopsia is frequent; green is often seen indistinctly, or confounded with other colours. In like manner the visual power for colours returns at successive times, green coming last. Scatoma often occurs, and passes away in the same manner. The same appearances are noticed in hysteria, especially after hysterical attacks. In neurasthenia the visual area for white light is unaltered, while that for coloured light is contracted. In ordinary drunkenness there is no sensible diminution of the field of vision; but it is constantly found in chronic alcoholism and delirium tremens. In these cases hemiopia is the most common form of visual defect. It is generally in both eyes, not in one, as Magnan states. In some women, apparently healthy, there was observed periodical contraction of the retinal visual area, especially during menstruation.

Copyright
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

The British Journal of Psychiatry
  • ISSN: -
  • EISSN: 2514-9946
  • URL: /core/journals/the-british-journal-of-psychiatry
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 2 *
Loading metrics...

Abstract views

Total abstract views: 5 *
Loading metrics...

* Views captured on Cambridge Core between 19th February 2018 - 17th June 2018. This data will be updated every 24 hours.

3. German Retrospect.: Changes in Visual Power in Nervous Diseases.

Submit a response

eLetters

No eLetters have been published for this article.

×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *