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Slide 1. A form to organize evaluation of glasses problems. |
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Slide 2. Tape measure, scaled in inches and millimeters. Small hand-held ruler. |
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Slide 3. Lens clock and lens calipers. |
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Slide 4. Distometer with conversion guide. |
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Slide 5. Accommodative ruler. |
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Slide 6. Measuring the optimal reading distance. |
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Slide 7. Measuring vertex distance of spectacles with distometer. |
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Slide 8. Pupillometer. |
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Slide 9. Ruler measurement of interpupillary distance. |
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Slide 10. Facial asymmetry with left eye significantly higher than right eye. |
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Slide 11. Bifocal position relative to pupil height. |
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Slide 12. Measuring spectacle lens dimensions. |
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Slide 13. Measuring lens base curve with lens clock. |
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Slide 14. Measuring lens thickness with lens calipers. |
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Slide 15. Mild orbital asymmetry. Ruler highlights the 2mm difference in vertical ocular position. |
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Video 1. How to measure optimal reading point. |
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Video 2. The use of the accommodative ruler to measure accommodative amplitude. |