Vision 2020 - World Health Organization

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ANNEX IV REVISED LIST OF VISION <strong>2020</strong> INDICATORS Links to other indicators Underlying definition Measurement method Limitations Frequency Human resource development, infrastructure, appropriate technology As above Compilation from national and subnational (district) data Incomplete reporting (e.g. private sector) Annual Cataract surgical coverage Level of collection Level of collation Brief definition Unit of measurement Purpose Links to other indicators Underlying definition Measurement method Limitations Frequency National and subnational Regional or global Proportion of people with bilateral cataract who have received surgery in one or both eyes (at 3/60 and 6/18 level) Proportion Intraocular lens implantation rate Level of collection Level of collation Brief definition Unit of measurement Purpose Links to other indicators Underlying definition Measurement method Limitations Frequency To assess the degree to which cataract surgical services are meeting the need Cataract blindness prevalence; cataract surgical rate Proportion eligible for surgery who have received surgery Estimates from population-based surveys and national data on cataract output Requires population-based studies, which are of limited generalizability 5-yearly or more frequently when possible National Regional or global Proportion of all cataract operations with intraocular lenses Absolute numbers with and without intraocular lenses Proxy measure of quality Cataract output Cataract surgery with intraocular lenses Compilation from regional and national data Incomplete reporting, e.g. private sector Annual Recommended: Quality of cataract surgery outcome (at level of individual surgeon or surgical centre; various software packages available) 73
VISION <strong>2020</strong> GLOBAL INITIATIVE FOR THE ELIMINATION OF AVOIDABLE BLINDNESS: ACTION PLAN 2006–2011 1.3 Indicators for control of refractive errors Level of collection Level of collation Brief definition Unit of measurement Purpose Links to other indicators Underlying definition Measurement methods Limitations Frequency National Regional or global Proportion of people by age group with uncorrected refractive errors causing visual impairment (i.e. presenting < 6/18 visual acuity in the better eye) Absolute number; prevalence To assess refraction service provision; advocacy for policy and priority setting Demographic data Number of persons requiring refraction correction Population-based surveys, refraction error service compliance Patient adherence; poor data availability Up to 5 years 1.4 Indicators for control of low vision Low vision Level of collection National Level of collation Brief definition Unit of measurement Purpose Links to other indicators Underlying definition Measurement methods Limitations Frequency Low-vision care Level of collection Level of collation Brief definition Unit of measurement Purpose National, regional or global Number of persons with low vision needing low-vision services Absolute number Programme management, human resource development, advocacy Level of development, gender < 6/18–3/60 in the better eye, after standard refraction correction or treatment Population-based surveys, refraction service compliance Limited accuracy and limited data 5 years National National or regional Availability of low-vision care services Proportion of countries in which low-vision services are established To assess availability of low-vision care 74
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GLOBAL INITIATIVE FOR THE ELIMINATI
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CONTENTS Acknowledgements iv Summar
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SUMMARY The global initiative known
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1. AVOIDABLE VISUAL IMPAIRMENT - A
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AVOIDABLE VISUAL IMPAIRMENT - A HUM
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2. APPROACHES TO PREVENTION OF VISU
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APPROACHES TO PREVENTION OF VISUAL
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Page 30 and 31: APPROACHES TO PREVENTION OF VISUAL
Page 64 and 65: VISION 2020: THE RIGHT TO SIGHT 6.
Page 66 and 67: VISION 2020: THE RIGHT TO SIGHT •
Page 68 and 69: ANNEX I WORLD HEALTH ASSEMBLY RESOL
Page 70 and 71: ANNEX II WORLD HEALTH ASSEMBLY RESO
Page 72 and 73: ANNEX III MILLENNIUM DEVELOPMENT GO
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Page 76 and 77: ANNEX IV REVISED LIST OF VISION 202
Page 90 and 91: ANNEX V IMPLEMENTATION OF VISION 20
Page 92 and 93: ANNEX V IMPLEMENTATION OF VISION 20
Page 94 and 95: ANNEX VI PARTICIPANTS AND WORKING G
Page 96: World Health Organization Secretari
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Vision 2020 - World Health Organization

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