Instructions for Downloading Photographs and Images |
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Description: Early Treatment of Diabetic Retinopathy Study (ETDRS) visual acuity chart. (Chart R)
Credit: National Eye Institute, National Institutes of Health
Ref# EC02
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72 dpi (147K)
150 dpi (652K)
300 dpi (2.5M) |
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Description: Early Treatment of Diabetic Retinopathy Study (ETDRS) visual acuity chart. (Chart 1)
Credit: National Eye Institute, National Institutes of Health
Ref# EC05 |
72 dpi (147K)
150 dpi (636K)
300 dpi (2.49M) |
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Description: Early Treatment of Diabetic Retinopathy Study (ETDRS) visual acuity chart. (Chart 2)
Credit: National Eye Institute, National Institutes of Health
Ref# EC06
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72 dpi (147K)
150 dpi (652K)
300 dpi (2.5) |
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Description: The Snellen visual acuity chart.
Credit: National Eye Institute, National Institutes of Health
Ref# EC01
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72 dpi (31K)
150 dpi (93K)
300 dpi (273K) |
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Description: Amsler grid.
Credit: National Eye Institute, National Institutes of Health
Ref# EC03
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72 dpi (34K)
150 dpi (75K)
300 dpi (207K) |
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Description: Amsler grid as it might appear to someone with age-related macular degeneration.
Credit: National Eye Institute, National Institutes of Health
Ref# EC04
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72 dpi (34K)
150 dpi (75K)
300 dpi (207K) |
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