Iridescent vision in glaucoma / by E. Treacher Collins.

  • Collins, E. Treacher (Edward Treacher), 1862-1937.
Date:
[1890?]
Catalogue details

Licence: Public Domain Mark

Credit: Iridescent vision in glaucoma / by E. Treacher Collins. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    to be slightly steamy. There was no increase in the ten- sion of the globe. The first specimen of erythrophlceine that was used produced slight dilatation of the pupil. A second specimen produced slight contraction. After the use of both these solutions the coloured halos were seen. Thus by the use of these drops several of the symptoms that are present in glaucoma are produced, viz., the fogginess of vision, the coloured halos, together with the steaminess and anaesthesia of the cornea. The halos, as will be seen by the above description, were precisely like those observed by glaucomatous patients ; the red circle being always the outermost. The following case shows that this is so even when the glaucoma has occurred in a myope:— Edward R., jet. 59, was admitted to Moorfields Eye Hospital on March 20th, 1888. In the previous December he noticed a dimness of sight of his right eye, which at first came on only towards evening and had passed away by the next morning. It, however, steadily increased. He had occasional attacks of pain in the eyes. He saw rings of rainbow-colours around the lights at night —the blue being the innermost and the red the outermost of these rings. He had had a cataract (probably traumatic) removed from his left eye when 16 years old. On examination of his right eye there was seen to be distinct haze of the cornea ; a good A.C. ; a semi-dilated pupil, with two or three posterior synechia?, T + 2. He was myopic. V. = ¥%- m = xV Field was con- tracted. The halos produced by erythrophlceine cannot be connected with any dilatation of the pupil, for they were seen equally well after the use of the specimen which produced slight contraction of the pupil. Lauder Brunton* and MM. Homolle and Quevenne, experimenting with digitalin, found that after its use halos were seen and, it is stated, a slight opacity of the lens produced. * Lancet. March 3, 1888.