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Keel S, Lingham G, Misra N, Block S, Bourne R, Calonge M, Cheng CY, Friedman DS, Furtado JM, Khanna R, Mariotti S, Mathenge W, Matoto E, Müeller A, Rabiu M, Rasengane T, Resnikoff S, Wormald R, Yasmin S, Zhao J, Evans JR, Cieza A, Chan VF, Chen Y, Chinnery H, Dodson S, Downie L, Gordon I, Ghadiri N, Govender Poonsamy P, Han X, Hui F, Jackson ML, Lawrenson J, Ning Lee C, McGuinness M, Murray C, Newsham D, van Nispen R, Prictor M, Puri L, Ramke J, Reekie I, Safi S, Scheetz J, Shen S, Silveira S, Thakur S, Virgili G, Yong AC, Zhang J, Ziaei M, Ali MA, AlObaida IA, AlShamlan FT, Alsulaiman SM, Amissah-Arthur KN, Ang M, Azad R, Bell K, Bharadwaj SR, Booysen DJ, Branchevski S, Bosch V, Brossard-Barbosa N, Chen Y, Craig JP, Dada T, Dichoso CA, Duerksen R, Ebri A, Erdmann I, Freddo T, Flanagan J, Gammoh Y, Gupta N, Hendicott P, Husni MA, Jonathan Jackson A, Jadoon MZ, Januleviciene I, Jeeva I, Jimenez MSS, Kocur I, Kreis A, Kyei S, Lan W, Loy MJV, Marmamula S, Minto LH, Muhit M, Nsubuga NH, Ogundipe A, Okonkwo ON, Olawoye OO, Ouertani AM, Ovenseri-Ogbomo G, Özkan SB, Patel B, Paula JS, Rahi JS, Ravilla RD, Senanayake NS, Sil AK, Solebo AL, Sousa RARC, Tennant MTS, van Staden DB, Wazir JF, Webber AL, Yorston D, Zin A, Faal HB, Keeffe J, McGrath CE. Toward Universal Eye Health Coverage-Key Outcomes of the World Health Organization Package of Eye Care Interventions: A Systematic Review. JAMA Ophthalmol 2022; 140:1229-1238. [PMID: 36394836 DOI: 10.1001/jamaophthalmol.2022.4716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Importance Despite persistent inequalities in access to eye care services globally, guidance on a set of recommended, evidence-based eye care interventions to support country health care planning has not been available. To overcome this barrier, the World Health Organization (WHO) Package of Eye Care Interventions (PECI) has been developed. Objective To describe the key outcomes of the PECI development. Evidence Review A standardized stepwise approach that included the following stages: (1) selection of priority eye conditions by an expert panel after reviewing epidemiological evidence and health facility data; (2) identification of interventions and related evidence for the selected eye conditions from a systematic review of clinical practice guidelines (CPGs); stage 2 included a systematic literature search, screening of title and abstracts (excluding articles that were not relevant CPGs), full-text review to assess disclosure of conflicts of interest and affiliations, quality appraisal, and data extraction; (3) expert review of the evidence extracted in stage 2, identification of missed interventions, and agreement on the inclusion of essential interventions suitable for implementation in low- and middle-income resource settings; and (4) peer review. Findings Fifteen priority eye conditions were chosen. The literature search identified 3601 articles. Of these, 469 passed title and abstract screening, 151 passed full-text screening, 98 passed quality appraisal, and 87 were selected for data extraction. Little evidence (≤1 CPG identified) was available for pterygium, keratoconus, congenital eyelid disorders, vision rehabilitation, myopic macular degeneration, ptosis, entropion, and ectropion. In stage 3, domain-specific expert groups voted to include 135 interventions (57%) of a potential 235 interventions collated from stage 2. After synthesis across all interventions and eye conditions, 64 interventions (13 health promotion and education, 6 screening and prevention, 38 treatment, and 7 rehabilitation) were included in the PECI. Conclusions and Relevance This systematic review of CPGs for priority eye conditions, followed by an expert consensus procedure, identified 64 essential, evidence-based, eye care interventions that are required to achieve universal eye health coverage. The review identified some important gaps, including a paucity of high-quality, English-language CPGs, for several eye diseases and a dearth of evidence-based recommendations on eye health promotion and prevention within existing CPGs.
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Affiliation(s)
- Stuart Keel
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | - Gareth Lingham
- Centre for Eye Research Ireland, Technological University Dublin, Dublin, Ireland.,Centre for Ophthalmology and Visual Science (incorporating Lions Eye Institute), University of Western Australia, Perth, Australia
| | - Neha Misra
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | | | - Rupert Bourne
- Cambridge University Hospitals, Cambridge, United Kingdom.,Vision & Eye Research Institute, School of Medicine, Anglia Ruskin University, Cambridge, United Kingdom
| | - Margarita Calonge
- Institute of Applied OphthalmoBiology, Universidad de Valladolid, Valladolid, Spain.,CIBER-BBN (Biomedical Research Networking Center Bioengineering, Biomaterials and Nanomedicine), Carlos III National Institute of Health, Valladolid, Spain
| | - Ching-Yu Cheng
- Ophthalmology & Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | | | - João M Furtado
- Division of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Rohit Khanna
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye Care, L V Prasad Eye Institute, Hyderabad, India
| | - Silvio Mariotti
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | | | | | - Andreas Müeller
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | - Mansur Rabiu
- Noor Dubai Foundation, Dubai Health Authority, Dubai, United Arab Emirates
| | - Tuwani Rasengane
- Department of Optometry, University of the Free State, Bloemfontein, South Africa.,Universitas Hospital, Bloemfontein, South Africa
| | - Serge Resnikoff
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia.,Brien Holden Vision Institute, Sydney, Australia.,Organisation pour la Prévention de la Cécité, Paris, France
| | - Richard Wormald
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom.,NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom.,UCL Institute of Ophthalmology, London, United Kingdom.,Cochrane Eyes and Vision, Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland
| | | | - Jialiang Zhao
- Department of Ophthalmology, Peking Union Medical College Hospital, Eye Research Center Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jennifer R Evans
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom.,Cochrane Eyes and Vision, Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland
| | - Alarcos Cieza
- Department of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland
| | | | - Ving Fai Chan
- for the Package of Eye Care Interventions Development Group
| | - Yanxian Chen
- for the Package of Eye Care Interventions Development Group
| | - Holly Chinnery
- for the Package of Eye Care Interventions Development Group
| | - Sarity Dodson
- for the Package of Eye Care Interventions Development Group
| | - Laura Downie
- for the Package of Eye Care Interventions Development Group
| | - Iris Gordon
- for the Package of Eye Care Interventions Development Group
| | - Nima Ghadiri
- for the Package of Eye Care Interventions Development Group
| | | | - Xiaotong Han
- for the Package of Eye Care Interventions Development Group
| | - Flora Hui
- for the Package of Eye Care Interventions Development Group
| | | | - John Lawrenson
- for the Package of Eye Care Interventions Development Group
| | - Chan Ning Lee
- for the Package of Eye Care Interventions Development Group
| | | | - Craig Murray
- for the Package of Eye Care Interventions Development Group
| | - David Newsham
- for the Package of Eye Care Interventions Development Group
| | | | - Megan Prictor
- for the Package of Eye Care Interventions Development Group
| | - Lila Puri
- for the Package of Eye Care Interventions Development Group
| | | | - Ian Reekie
- for the Package of Eye Care Interventions Development Group
| | - Sare Safi
- for the Package of Eye Care Interventions Development Group
| | - Jane Scheetz
- for the Package of Eye Care Interventions Development Group
| | - Sunny Shen
- for the Package of Eye Care Interventions Development Group
| | - Sue Silveira
- for the Package of Eye Care Interventions Development Group
| | - Sahil Thakur
- for the Package of Eye Care Interventions Development Group
| | - Gianni Virgili
- for the Package of Eye Care Interventions Development Group
| | - Ai Chee Yong
- for the Package of Eye Care Interventions Development Group
| | - Justine Zhang
- for the Package of Eye Care Interventions Development Group
| | - Mohammed Ziaei
- for the Package of Eye Care Interventions Development Group
| | | | | | | | | | | | - Marcus Ang
- for the Package of Eye Care Interventions Development Group
| | | | - Kristin Bell
- for the Package of Eye Care Interventions Development Group
| | | | - Dirk J Booysen
- for the Package of Eye Care Interventions Development Group
| | | | - Vanessa Bosch
- for the Package of Eye Care Interventions Development Group
| | | | - Yi Chen
- for the Package of Eye Care Interventions Development Group
| | | | - Tanuj Dada
- for the Package of Eye Care Interventions Development Group
| | | | | | - Anne Ebri
- for the Package of Eye Care Interventions Development Group
| | - Irmela Erdmann
- for the Package of Eye Care Interventions Development Group
| | - Thomas Freddo
- for the Package of Eye Care Interventions Development Group
| | - John Flanagan
- for the Package of Eye Care Interventions Development Group
| | - Yazan Gammoh
- for the Package of Eye Care Interventions Development Group
| | - Neeru Gupta
- for the Package of Eye Care Interventions Development Group
| | | | | | | | | | | | - Irfan Jeeva
- for the Package of Eye Care Interventions Development Group
| | | | - Ivo Kocur
- for the Package of Eye Care Interventions Development Group
| | - Andreas Kreis
- for the Package of Eye Care Interventions Development Group
| | - Samuel Kyei
- for the Package of Eye Care Interventions Development Group
| | - Weizhong Lan
- for the Package of Eye Care Interventions Development Group
| | | | | | | | - Mohammad Muhit
- for the Package of Eye Care Interventions Development Group
| | | | | | | | | | | | | | - Seyhan B Özkan
- for the Package of Eye Care Interventions Development Group
| | - Bina Patel
- for the Package of Eye Care Interventions Development Group
| | - Jayter S Paula
- for the Package of Eye Care Interventions Development Group
| | - Jugnoo S Rahi
- for the Package of Eye Care Interventions Development Group
| | | | | | - Asim Kumar Sil
- for the Package of Eye Care Interventions Development Group
| | | | - Raúl ARC Sousa
- for the Package of Eye Care Interventions Development Group
| | | | | | | | - Ann L Webber
- for the Package of Eye Care Interventions Development Group
| | - David Yorston
- for the Package of Eye Care Interventions Development Group
| | - Andrea Zin
- for the Package of Eye Care Interventions Development Group
| | - Hannah B Faal
- for the Package of Eye Care Interventions Development Group
| | - Jill Keeffe
- for the Package of Eye Care Interventions Development Group
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Abdullah SN, Sanderson GF, Husni MA, Maddess T. Insights for mfVEPs from perimetry using large spatial frequency-doubling and near frequency-doubling stimuli in glaucoma. Doc Ophthalmol 2020; 141:45-55. [PMID: 32034583 DOI: 10.1007/s10633-020-09750-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/16/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE To compare two forms of perimetry that use large contrast-modulated grating stimuli in terms of: their relative diagnostic power, their independent diagnostic information about glaucoma and their utility for mfVEPs. We evaluated a contrast-threshold mfVEP in normal controls using the same stimuli as one of the tests. METHODS We measured psychophysical contrast thresholds in one eye of 16 control subjects and 19 patients aged 67.8 ± 5.65 and 71.9 ± 7.15, respectively, (mean ± SD). Patients ranged in disease severity from suspects to severe glaucoma. We used the 17-region FDT-perimeter C20-threshold program and a custom 9-region test (R9) with similar visual field coverage. The R9 stimuli scaled their spatial frequencies with eccentricity and were modulated at lower temporal frequencies than C20 and thus did not display a clear spatial frequency-doubling (FD) appearance. Based on the overlapping areas of the stimuli, we transformed the C20 results to 9 measures for direct comparison with R9. We also compared mfVEP-based and psychophysical contrast thresholds in 26 younger (26.6 ± 7.3 y, mean ± SD) and 20 older normal control subjects (66.5 ± 7.3 y) control subjects using the R9 stimuli. RESULTS The best intraclass correlations between R9/C20 thresholds were for the central and outer regions: 0.82 ± 0.05 (mean ± SD, p ≤ 0.0001). The areas under receiver operator characteristic plots for C20 and R9 were as high as 0.99 ± 0.012 (mean ± SE). Canonical correlation analysis (CCA) showed significant correlation (r = 0.638, p = 0.029) with 1 dimension of the C20 and R9 data, suggesting that the lower and higher temporal frequency tests probed the same neural mechanism(s). Low signal quality made the contrast-threshold mfVEPs non-viable. The resulting mfVEP thresholds were limited by noise to artificially high contrasts, which unlike the psychophysical versions, were not correlated with age. CONCLUSION The lower temporal frequency R9 stimuli had similar diagnostic power to the FDT-C20 stimuli. CCA indicated the both stimuli drove similar neural mechanisms, possibly suggesting no advantage of FD stimuli for mfVEPs. Given that the contrast-threshold mfVEPs were non-viable, we used the present and published results to make recommendations for future mfVEP tests.
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Affiliation(s)
- Siti Nurliyana Abdullah
- Orthoptic Unit, Eye Centre, RIPAS Hospital, Jalan Putera Al-Muhtadee Billah, Bandar Seri Begawan, BA 1710, Brunei Darussalam.,Eccles Institute for Neuroscience, John Curtin School of Medical Research (Bldg 131), Australian National University, Canberra, ACT, 2601, Australia
| | - Gordon F Sanderson
- Ophthalmology Section, Department of Medicine, Otago University, Dunedin, New Zealand
| | - Mohd Aziz Husni
- Department of Ophthalmology, Hospital Selayang, 68100, Batu Caves, Selangor, Darul Ehsan, Malaysia
| | - Ted Maddess
- Eccles Institute for Neuroscience, John Curtin School of Medical Research (Bldg 131), Australian National University, Canberra, ACT, 2601, Australia.
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Chew FLM, Salowi MA, Mustari Z, Husni MA, Hussein E, Adnan TH, Ngah NF, Limburg H, Goh PP. Estimates of visual impairment and its causes from the National Eye Survey in Malaysia (NESII). PLoS One 2018; 13:e0198799. [PMID: 29944677 PMCID: PMC6019397 DOI: 10.1371/journal.pone.0198799] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 05/26/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Population-based data on prevalence, causes of blindness and extent of ophthalmological coverage is required for efficient implementation and evaluation of ocular health programs. In view of the scarcity of prevalence data for visual impairment and blindness in Malaysia, this study aims to estimate the prevalence and causes of visual impairment (VI) in the elderly, using Rapid Assessment of Avoidable Blindness (RAAB) survey technique. METHODS Malaysia was divided into six regions, with each region consisting of 50 clusters. Multistage cluster sampling method was used and each cluster contained 50 residents aged 50 years and above. Eligible subjects were interviewed and pertinent demographic details, barriers to cataract surgery, medical and ocular history was noted. Subjects had visual acuity assessment with tumbling 'E' Snellen optotypes and ocular examination with direct ophthalmoscope. The primary cause of VI was documented. Results were calculated for individual zones and weighted average was used to obtain overall prevalence for the country. Inter-regional and overall prevalence for blindness, severe VI and moderate VI were determined. Causes of VI, cataract surgical coverage and barriers to cataract surgery were assessed. RESULTS A total of 15,000 subjects were examined with a response rate of 95.3%. The age and gender-adjusted prevalence of blindness, severe visual impairment and moderate visual impairment were 1.2% (95% Confidence Interval: 1.0-1.4%), 1.0% (95%CI: 0.8-1.2%) and 5.9% (5.3-6.5%) respectively. Untreated cataract (58.6%), diabetic retinopathy (10.4%) and glaucoma (6.6%) were the commonest causes of blindness. Overall, 86.3% of the causes of blindness were avoidable. Cataract surgical coverage (CSC) in persons for blindness, severe visual impairment and moderate visual impairment was 90%, 86% and 66% respectively. CONCLUSION Increased patient education and further expansion of ophthalmological services are required to reduce avoidable blindness even further in Malaysia.
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Affiliation(s)
- Fiona L. M. Chew
- Department of Ophthalmology, Hospital Selayang, Batu Caves, Selangor, Malaysia
| | - Mohamad Aziz Salowi
- Department of Ophthalmology, Hospital Selayang, Batu Caves, Selangor, Malaysia
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Terengganu, Malaysia
| | - Zuraidah Mustari
- Department of Ophthalmology, Hospital Sultanah Nur Zahirah, Kuala Terengganu, Terengganu, Malaysia
| | - Mohd Aziz Husni
- Department of Ophthalmology, Hospital Selayang, Batu Caves, Selangor, Malaysia
| | - Elias Hussein
- Department of Ophthalmology, Hospital Selayang, Batu Caves, Selangor, Malaysia
| | - Tassha Hilda Adnan
- Clinical Research Centre, Hospital Kuala Lumpur, Kuala Lumpur, Wilayah Persekutuan, Malaysia
| | - Nor Fariza Ngah
- Department of Ophthalmology, Hospital Shah Alam, Shah Alam, Selangor, Malaysia
| | - Hans Limburg
- Health Information Services, Grootebroek, The Netherlands
| | - Pik-Pin Goh
- Clinical Research Centre, Hospital Kuala Lumpur, Kuala Lumpur, Wilayah Persekutuan, Malaysia
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