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ABO Spectacle Lens Review Module 1
- Metric system;
- Focal lengths;
- Lens powers;
- Transposition;
- Astigmatism classification.
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ABO Spectacle Lens Review Module 2
- Optical crosses;
- Finding the power at a non-prescribed axis;
- Spherical equivalent;
- Calculating reading and intermediate Rx.
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ABO Spectacle Lens Review Module 3
- Vertical decentration;
- Decentration;
- Minimum blank size;
- Image jump.
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ABO Spectacle Lens Review Module 4
- Splitting prism;
- Prism direction;
- Prentice's rule (applied to spherical Rx's);
- Prentice's rule (applied to cylindrical Rx's).
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ABO Spectacle Lens Review Module 5
- Vertex distance;
- Slab off;
- Common lens values;
- Index of refraction.
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ABO Spectacle Lens Review Module 6
- Fibrous tunic;
- Vascular Tunic;
- Retina, Tear film;
- Eye chambers;
- Extra-ocular muscles;
- Refractive errors.
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