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Great Point Light - LightWedge Paperback

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£20.44
LightWedge« PAPERBACK helps you read books without lighting the room! Simply lay the LightWedge« on the page and read through it. You won't have to hear "Turn the reading light off" again! How does it work? It is in the "wedge" shape design, two... read more
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Power
Sometimes called 'sphere' or 'strength'. Measured in diopters and always preceded by - (minus) or + (plus). Negative (-) powers help to correct short sighted conditions. Positive (+) powers help to correct long sighted conditions.
Diameter
The diameter of the lens. Most brands come in a couple of sizes. Usually a 14.x number but could be between 13.x to 15.x.
Base Curve
Base curve, determining how the lens fits. It is usually an 8.x or 9.x number. Some brands use non-numeric base curves such as flat, media or steep.
Cylinder
Extra power needed for astigmatism. Always a - (minus) number.
Axis
The placement of the extra power in a toric lens for astigmatism. The axis can be anywhere between 0 and 180 degrees.
Select Eye
By unticking left or right eye you can order for one eye or one box.
Material Water Content 0%
Manufacturer Great Point Light Frequency
Brand Name LightWedge Paperback
Frequency
Availability In Stock

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Perfect for reading in bed without disturbing your spouse!
Marilyn Payne

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