70 research outputs found
Patients and glaucoma: what are the challenges?
No full textMohammed Abdull is the head of the ophthalmology department at Abubakar Tafawa Balewa University Teaching hospital in Bauchi, Bauchi State, Nigeria, and is studying for a PhD at the International Centre for Eye Health, London School of Hygiene and Tropical Medicine. His field research, conducted in Bauchi, is aimed at understanding how people’s awareness of glaucoma relates to the severity of glaucoma they have when they arrive at the hospital as well as their ability to manage the disease. He spoke to Fatima Kyari
Managing cataract surgery in patients with glaucoma
No full textCataract and glaucoma can co-exist. Learn about cataract surgery in patients with previous trabeculectomies, and when (and how) to combine cataract and glaucoma surgery
‘An ideal service for glaucoma would be…’
No full textThis article proposes a ‘top-down’ approach to developing glaucoma services. To do this, good evidence, gathered through research, is needed
Challenges of agriculture-related eye injuries in Nigeria
No full textAgriculture, which includes crop farming, livestock rearing and fishing, provides work for up to 70% of the labour force in Nigeria. The agricultural sector contributes up to 20% of the gross domestic product (GDP) of Nigeria, with an average real growth rate of 3.5% from 2014 to 2015
The basics of good postoperative care after glaucoma surgery
No full textGlaucoma patients are treated by lowering the intraocular pressure (IOP) to a level that it is not harmful to the optic nerve. This prevents or delays loss of vision. Lowering of the IOP can be achieved through use of eye medication, surgery or laser procedures. The most common glaucoma surgery is trabeculectomy
Managing a patient with open-angle glaucoma: a case study
No full textHow would a panel of experts manage the case presentation of Mr AA
Strengthening eye health evidence for children in low-income and middle-income countries.
No full textPeribulbar versus retrobulbar anaesthesia for cataract surgery.
No full textBACKGROUND: Cataract is a major cause of blindness worldwide. Unless medically contraindicated, cataract surgery is usually performed under local (regional) anaesthesia. Local anaesthesia involves the blockage of a nerve subserving a given part of the body by infiltration of the area around the nerve with local anaesthetic. The two main approaches in the eye are retrobulbar and peribulbar. There is debate over whether the peribulbar approach provides more effective and safer anaesthesia for cataract surgery than retrobulbar block. OBJECTIVES: The objective of this review was to assess the effects of peribulbar anaesthesia (PB) compared to retrobulbar anaesthesia (RB) on pain scores, ocular akinesia, patient acceptability and ocular and systemic complications. SEARCH STRATEGY: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2007, Issue 4); MEDLINE (1960 to December 2007); and EMBASE (1980 to December 2007). SELECTION CRITERIA: We included randomized controlled clinical trials comparing peribulbar anaesthesia and retrobulbar anaesthesia for cataract surgery. DATA COLLECTION AND ANALYSIS: Two authors independently assessed trial quality and extracted data. We contacted trial authors for additional information, study methodology and missing data. We carried out a descriptive narrative of results as the methods used by the included stories for reporting the outcomes varied. We performed a subgroup analysis for globe akinesia. MAIN RESULTS: We included six trials involving 1438 participants. Two of the six trials had a low risk of bias; the remaining four had a moderate risk of bias. There was no evidence of any difference in pain perception during surgery with either retrobulbar or peribulbar anaesthesia. Both were largely effective. There was no evidence of any difference in complete akinesia or the need for further injections of local anaesthetic. Conjunctival chemosis was more common after peribulbar block (relative risk (RR) 2.11, 95% confidence Interval (CI) 1.46 to 3.05) and lid haematoma was more common after retrobulbar block (RR 0.36, 95% CI 0.15 to 0.88). Retrobulbar haemorrhage was uncommon and occurred only once, in a patient who had a retrobulbar block. AUTHORS' CONCLUSIONS: There is little to choose between peribulbar and retrobulbar block in terms of anaesthesia and akinesia during surgery in terms of acceptability to patients, need for additional injections and development of severe complications. Severe local or systemic complications were rare in PB and RB
Prevalence and risk factors for diabetes and diabetic retinopathy: results from the Nigeria national blindness and visual impairment survey.
No full textBACKGROUND: In Nigeria, urbanisation and increasing life expectancy are likely to increase the incidence of non-communicable diseases. As the epidemic of diabetes matures, visual loss from diabetic retinopathy (DR) will increase unless mechanisms for early detection and treatment improve, and health systems respond to the growing burden of non-communicable diseases. METHODS: A nationally-representative population-based sample of 13,591 participants aged ≥40 years selected by multistage-stratified-cluster-random-sampling with probability-proportional-to-size procedures were examined in 305 clusters in Nigeria between January 2005 to June 2007. All were asked about history of diabetes and underwent basic eye examination. Visual acuity (VA) was measured using logMAR E-chart. Participants with VA11.1mmol/l or had DR. Data in the subsample were used to estimate the prevalence and to analyse risk factors for diabetes and DR using multivariable logistic regression. Additional information on the types of DR was obtained from participants not in the subsample. RESULTS: In the subsample, 164 participants were excluded due to missing data; and 1,595 analysed. 52/1,595 had diabetes, a prevalence of 3.3% (95%CI 2.5-4.3%); and 25/52(48%) did not know. Media opacity in 8/52 precluded retinal examination. 9/44(20.5%) had DR. Higher prevalence of diabetes was associated with urban residence (Odds ratio [OR]1.87) and overweight/obesity (OR3.02/4.43 respectively). Although not statistically significant, DR was associated with hypertension (OR3.49) and RBG>15.0mmol/L (OR8.10). Persons with diabetes had 3 times greater odds of blindness. Of 11,832 other participants in the study sample, 175(1.5%) had history of diabetes; 28 had DR. Types of DR (total=37) included 10.8% proliferative, 51.4% macular oedema. CONCLUSION: The age-adjusted prevalence of diabetes in Nigeria was 3.25% (95%CI 2.50-4.30) and over 10% of people with diabetes aged ≥40 years had sight-threatening-DR. These data will enable the development of better public health strategies for the control of diabetes and planning services for DR to prevent vision loss
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