Observations on hemeralopia; or, Nocturnal blindness, with cases, and practical illustrations / by Andrew Simpson.

Date:
1819
Catalogue details

Licence: Public Domain Mark

Credit: Observations on hemeralopia; or, Nocturnal blindness, with cases, and practical illustrations / by Andrew Simpson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    attended with doubt, the chief marks of the evil complained of should be taken into considera- tion. ^rrtion Jfiftt). PROGNOSIS OF THE DISEASE. THE next object in relation to this ocular affection, is the determination whether it is of importance, or may be productive of dangerous consequences. The prognosis, perhaps, should, generally speaking, be favourable. Although, it must be acknowledged, that hemeruilopia some- times accompanies a state of constitution which is not altogether free of danger: but this will ap- pear more fully from the first and third cases brought forward in the way of illustration. The ophthalmic affection, of itself, does not seem to be dangerous; the truth is, it can only be strictly considered as a symptomatic phenome- non ; but the condition of body, with which it is frequently, according to the Author’s experience, accompanied. And this dangerous condition, it may be remarked, seems to arise, in some cases, in a certain measure, from the state of the brain; —and vascular turgescence or congestion in the encephalon, in the warmer climates especially, has a very hazardous tendency. The state of