Glomus tumours are hamartomas derived from the normal glomus body. A total of 43 glomus tumours have been seen over the past 18 years, and are reviewed. Their clinical presentations and pathology are analysed and the continuing difficulty in diagnosis is examined.
Twenty-three eyes of 22 consecutive patients with primary chronic angle-closure glaucoma (PCACG) undergoing extracapsular cataract extraction (ECCE) with intraocular lens (IOL) implantation were studied prospectively to assess the effect of ECCE on intraocular pressure (IOP) control. For comparison, a group of 21 eyes with open angle glaucoma (OAG) which had undergone ECCE were reviewed retrospectively. The PCACG group had a low incidence of acute post-operative IOP elevations (9%), and long-term the majority (65%) achieved an IOP less than 21 mmHg off all glaucoma medications. In the OAG group the IOP control was largely unaffected. We recommend that eyes with cataract and PCACG should be considered for ECCE as a first procedure rather than combined cataract and filtering surgery.
SUMMARYSickle trait is the commonest of the sickle haemoglo binopathies and affects approximately 9% of the Afro-Caribbean population of North America. ] Traditionally the condition was considered to be benign, important only for its genetic implications, 2 , 3 but some authors have challenged this viewpoint. Spontaneous vitreous haemorrhage, 3 , 4 proliferative retinopathr and other ocular lesions have been described, albeit in the presence of some precipitat ing factor.Factors known to enhance sickling of red blood cells, thereby increasing the risk of vascular throm bosis, include hypoxia, dehydration, acidosis, hyper viscosity and the percentage of abnormal haemoglobin.6 The combination of sickle trait and a significant degree of one or more of these factors may provoke sickle retinopathy. Three cases are reported to emphasise the importance of considering sickle trait as relevant to the management of eye disease in at-risk patients. presented to the eye casualty having been hit in the left eye by a paper pellet. On examination the vision was right 6/5 and left 6/18. On the left side a 5 mm hyphaema was present, the pupil was round and reactive and the intraocular pressure (lOP) was 18 mmHg. Dilated funduscopy was normal. The follow ing day the hyphaema had reduced in size but the lOP had risen to 38 mmHg, hence topical and oral ocular antihypertensive agents were introduced. Haemoglobin (Hb) electrophoresis revealed AS sickle trait with an HbS concentration of 38.3%. The next day the lOP had risen to 53 mmHg and oral glycerol was added to the regime. There was good response to this treatment, with the lOP returning to normal and gradual resolution of the hyphaema. Gonioscopy confirmed angle recession nasally.Six days after admission the patient was noted to have scattered preretinal and sub hyaloid haemor rhages in the temporal mid-periphery, but no retinal tears were identified. After 14 days the visual acuity was 6/6-3, the eye was quiet with no hyphaema and the rop was 13 mmHg. The haemorrhages in the mid-periphery remained and occluded vessels invol ving almost all of the peripheral retina were seen (Fig. 1). Six weeks after the incident the haemor rhages had resolved but there was no change in the appearance of the peripheral vasculature. A fluor escein angiogram (Fig. 2) showed extensive periph eral occlusion but no neovascularisation.The other fundus is normal and the lOP has remained at 12-15 mmHg on no treatment. Case 2A 59-year-old Jamaican woman was referred from the diabetic clinic because of reduced visual acuity and the finding of background diabetic retinopathy. She had been an insulin-dependent diabetic for 30 years, hypertension had been diagnosed 4 years previously and this was well controlled on nifedipine and a diuretic. She did not smoke. Visual acuity was Eye (1995) 9,589-593
SUMMARYSakuranetin, a flavanone aglycone, was present in glands on the adaxial surfaces of leaves of most varieties of Ribes nigrum L. These glands senesce early in the season, releasing their contents on to the surface of the leaf. Glands on the abaxial surfaces of leaves,, which are different in structure frotn those of adaxial surfaces, do not contain sakuranetin. Conidia of Hotrytis cinerea Pers. ex Fr. were inhibited from germinating on adaxial but not on abaxiai surfaces of leaves at the time of adaxial gland senescence. Later in the season there was no inhibition of germination of conidia on either leaf surface. Because of the low activity of sakuranetin in vitro it was concluded that other factors were also likely to affect germination of conidia on adaxial leaf surfaces.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.