Angle-closure, pupil dilatation, and pupil block.
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Angle-closure, pupil dilatation, and pupil block.
PREVious papers (Lowe, 1964a) have remarked that when the pupils of eyes with shallow anterior chambers, narrow angles, and open peripheral iridectomies are dilated with homatropine, a considerable proportion of the eyes with persistently narrow angles develop angle-closure, a consequent fall in outflow facility, and a rise in intra-ocular pressure that may reach the fifties within two hours. W...
متن کاملMechanics of pupil block.
PUPIL block is widely regarded as one ofthe factors in the initiation of closed-angle glaucoma (Barkan 1953, 1954; Chandler 1952, 1955). Whilst the occurrence of pupil block is an established fact, statements as to its mechanism are uniformly vague; e.g. both Barkan and Chandler consider it to be produced by contact between the iris and lens, Sugar (1964) states that the posteriorly directed ve...
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In two of my cases the medical attendant first called in rejected the diagnosis of opium or chlorodyne poisoning on account of the condition of the pupils. The composition of cholorodyne varies with the fancy of each manufacturer. In one sample of Collis Brown's preparation 4 grs. of morphia and the equivalent of 25 minims of B. P. Acidum Hydrocyanicumdilufcum were found in one ounce of the mix...
متن کاملPupil-block glaucoma in homocystinuria.
HOMOCYSTINURIA is an inborn error of metabolism due to deficiency of the enzyme cystathionine synthetase. This results in an increased excretion of homocystine in the urine and raised homocystine and methionine levels in the blood and cerebrospinal fluid. Clinically there is a picture of ectopia lentis, due to zonular degeneration, skeletal changes, fine fair hair, shuffling gait, mental retard...
متن کاملFactors affecting pupil size after dilatation: the Twin Eye Study.
BACKGROUND/AIMS Well dilated pupils make eye surgery easier. A classic twin study was established to examine the relative importance of genes and environment in the variance of pupil size after mydriasis, and to examine the effects of other factors such as age, iris colour, and refractive error. METHODS 506 twin pairs, 226 monozygotic (MZ) and 280 dizygotic (DZ), aged 49-79 (mean age 62.2 yea...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1966
ISSN: 0007-1161
DOI: 10.1136/bjo.50.7.385