Understanding your prescription
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Understanding your prescription

By: Doug Lasley

Making sense of your Cheap prescription glasses is easier than you would think if you understand the jargon! Here are some terms used on your prescription:
SPH (sphere).
This is your correction for long or short sight. It can be a ‘-‘ value or a ‘+’ value and goes up in 0.25 steps. 0.25, 0.50, 0.75, 1.00 etc.
CYL (cylinder).
The correction for any Astigmatism if you have one. It can be a ‘-‘ value or a ‘+’ value and goes up in 0.25 steps. 0.25, 0.50, 0.75, 1.00 etc.
AXIS.
The axis for which the correction for the Astigmatism needs to be set at. It will only be present if you have a value in CYL. And can be a value from 0 - 180
ADD (addition)
Only required if you need to use glasses for reading, , Rimless Glasses, Semi Rimless Glasses and is always a ‘+’ value. NEAR Means the same as ‘ADD’ above.
‘-‘or ‘+’ This is VERY important as it indicates short or long sightedness. The ‘-‘ value is sometimes written above the value.
PLANO
These all mean the same thing! No correction required/nothing/0
0 }
0.00 }
INFINITY }

DS(dioptre sphere). Usually appears under the CYL box and would indicate no CYL value.

OD When user refers to the right eye

OS When used refers to the left eye

If you require reading glasses, Cheap prescription glasses, Distance glasses please include the NEAR or ADD. If you require Distance /Driving glasses then you may omit this

You may also have an Intermediate value. This is for computer use. Please call us if you need glasses for VDU work and have this value on your prescription.

Article Source: http://articlenexus.com

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