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Data on Blindness and Visual Impairment in EMR and Africa
WHO releases the new global estimates on visual impairment
Using the most up to date studies, WHO estimates that the number of people with visual impairment
(presenting vision) is 285 million Of these, 246 million have low vision (and 39 million are estimated to be blind.
The Africa region constituted 15% of world blindness while the EMR had 12.6% of world total blindness.
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2010 Global and regional Blindness and Visual Impairment
| World | Africa | EMR | |
| Total Population (in millions) | 6737.5 | 804.9 | 580.2 |
| Number of blind (in millions) | 39.37 | 5.89 | 4.92 |
| Number with low vision (in millions) | 246.02 | 20.41 | 18.58 |
| Total with visual impairment (in millions) | 285.39 | 26.30 | 23.50 |
Causes of Blindness in Africa and EMR Regions in 2002
| Causes | % of Blindness | ||||
| World | Africa | EMR | |||
| Afr D | Afr E | EMR B | EMR D | ||
| Cataract | 47.8 | 50 | 55 | 49 | 49 |
| Glaucoma | 12.3 | 15 | 15 | 10 | 11 |
| Trachoma | 3.6 | 6.2 | 7.4 | 3.2 | 5.5 |
| Corneal opacities | 5.1 | 8 | 12 | 5.5 | 5 |
| Diabetic retinopathy | 4.8 | - | - | 3 | 3 |
| AMD | 8.7 | - | - | 3 | 2 |
| Childhood Blindness | 3.9 | 5.2 | 5.5 | 4.1 | 3.2 |
| Onchocerciasis | 0.8 | 6 | 2 | - | - |
| Others | 13 | 9.6 | 3.2 | 22.2 | 21.3 |
AFR D-
Algeria, Angola, Benin, Burkino Faso, Cameroon, Cape Verde, Chad, Comoros, E-Guinea, Gabon, Gambia, Ghana, Guinea, G-Bissau, Liberia, Madagascar, Mali, Mauritius, Niger, Nigeria, Sao tome and Principe, Senegal, Seychelles, Togo
AFR E-
Botswana, Burundi, Central African Republic, Congo, Cote D’ voire, Eritrea, Democratic Republic of Congo, Kenya, Lesotho, Malawi, Mozambique, Namibia, Rwanda, South Africa, Swaziland, Uganda, Tanzania, Zambia, Zimbabwe
EMR B –
Bahrain, Cyprus, Iran, Jordan, Kuwait, Lebanon, Libya, Oman, Qatar, Saudi Arabia, Syria, UAE, Tunisia
EMR D-
Afghanistan, Djibouti, Egypt, Iraq, Morocco, Pakistan, Somalia, Sudan, Yemen
Results of RAABs + Diabetic Retinopathy surveys in Saudi Arabia
| Parameters | AHSA region | JIZAN region* | TAIF region** |
| Sample size | 2842 | 3659 | 3052 |
| Response rate (%) | 94.7 | 96.3 | 92.5 |
| Blindness and Visual Impairment | |||
| Prevalence of blindness % (Age and sex adjusted) | 6.2 | 3.3 | 2.0 |
| Prevalence of blindness % (sample) | 6.4 | 5.7 | 2.6 |
| Prevalence of Severe Visual Impairment % (Age and sex adjusted) | 3.8 | 2.3 | 1.5 |
| Prevalence of Severe Visual Impairment % (sample) | 4.3 | 2.7 | 1.7 |
| Major causes of blindness (%) | |||
| Cataract | 43.1 | 58.6 | 41 |
| Posterior Segment and CNS Diseases | 13.3 | 10 | 7.9 |
| Other Corneal Scar | 9.4 | 9.5 | 6.3 |
| Phthisis | 8.8 | 1.4 | 3 |
| Surgical Complications | 5.5 | 3.8 | 1.3 |
| Glaucoma | 5.0 | 5.2 | 16.5 |
| Diabetic Retinopathy | 5.5 | 3.3 | 10 |
| Age Related Macular Degeneration | 0 | 3.3 | 8.9 |
| Trachoma | 6.1 | 0.5 | 1.3 |
| Uncorrected Aphakia | 0 | 1 | 3 |
| Cataract Surgical Coverage % (Age and Sex Adjusted) | 84.8 | 90.8 | 91 |
| Diabetes and Diabetic Retinopathy | |||
| Prevalence of Diabetes Mellitus % | 43 | 22.4 | 29.7 |
| Prevalence of Diabetic Retinopathy among Diabetics % | 45.7 | 28.1 | 36.8 |
| Prevalence of Diabetic Maculopathy among Diabetics % | 17.1 | 13.1 | 20.3 |
| Prevalence of Sight Threatening Diabetic Retinopathy among Diabetics % | 4.5 | 5.7 | 17.5 |
Countries' Survey Results
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