Chapter 22: Low Vision
List of Figures
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Figure 22-1: Lighthouse modification of the Ferris-Bailey ETDRS chart in a movable light box. |
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Figure 22-2: Low-vision spectacle aid. Patient demonstrates close reading distance (with lenticular spectacle) but with both hands free to hold reading material. |
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Figure 22-3: Hand magnifiers of varius types and strengths. |
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Figure 22-4: A woman with macular degeneration uses a fixed-focus stand magnifier. Her hand tremor prevented her from using a hand magnifier. |
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Figure 22-5: Low-vision telescopes. A: Hand-held monocular telescope. B: Spectacle-mounted Galilean focusable telescope. |
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10.1036/1535-8860.ch22