Read the information concerning plastic frame materials and then complete the quiz that follows.
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Complete the quiz that follows.
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There is a variety of forms a prescription can be written in, and the process of converting a prescription from one form to another is called transposition.
Read the information concerning metal frame materials and then complete the quiz that follows.
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Investigate which area of the eye retinal conditions occur
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Identify conditions in each image shown and then complete the quiz that follows.
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Investigate an image showing the anatomy of the eye. Each marker reveals a detailed description. Then complete the quiz that follows.
Play the audio tracks on each screen to hear about progressive power lenses verification in more detail.
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