Help and frequently asked questions

What are single vision lenses?

Answer: 

These are lenses which have a single power over the whole lens. They would be used, for example, for someone who needs spectacles only for driving or for reading. In some cases, a person's eyes may need lenses to focus at both far and near distances and their prescription ('strength' of the lens they need) is the same for both. In this case they can use the same single vision lens for all activities.

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