| 21. | :Some people wear contact lenses ( with diopters ) with tinted sunglasses ( without dioptres ).
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| 22. | In the former, the cylinder power is a number of diopters more convergent than the sphere power.
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| 23. | In the latter, the cylinder power is a number of diopters more divergent than the sphere component.
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| 24. | A + 1 diopter lens combined with a + 2 diopter lens forms a + 3 diopter system.
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| 25. | A + 1 diopter lens combined with a + 2 diopter lens forms a + 3 diopter system.
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| 26. | A + 1 diopter lens combined with a + 2 diopter lens forms a + 3 diopter system.
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| 27. | For this the standard iron sights can be replaced by target shooting diopter and globe sight sighting lines.
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| 28. | Ideally, small wedge prisms are used at 18.5 prism diopters ( Gottlieb, 1988 ).
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| 29. | He has big problems with his eyes such as daltonism and extreme myopia (-40 diopter ).
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| 30. | Direct comparisons between diopters and the more commonly understood 20 / 20 system of describing poor vision are difficult.
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