All those numbers look like a whole different language. But, considering they summarise your optical health, it’s only fair that you can interpret and understand what they all mean.
How your information will be used
The Information we hold and use will be used for our administrative purposes only. We will keep and use it to enable us to run the business and manage our relationship with you effectively, lawfully and appropriately.
Much of the information will have been provided by you and is used for contact and to let you know when we have special offers or events ( such as Macmillan coffee mornings)
You have the right to withdraw consent at any time for the information that we hold.
We will only disclose information about you to third parties if we are legally obliged to do so.
We may, with your consent, share information about you with other companies such as your employer, insurance or healthcare plan companies.
Your personal data will be stored for a period of 7 years
Under the General Data Protection Regulation (GDPR) and the Data Protection Act 2018 (DPA)
You have a number of rights with regard to your personal data. You have the right to request from us access to and rectification or erasure of your personal data, the right to restrict processing, objects to processing as well as in certain circumstances the right to data portability.
If you have provided consent for the processing of your data you have the right (in certain circumstances) to withdraw that consent at any time which will not affect the lawfulness of the processing before your consent was withdrawn.
You have the right to lodge a complaint to the Information Commissioners’’ Office if you believe that we have not complied with the requirements of the GDPR or DPA2018 with regard to your personal data.
If you have any concerns as to how your data is processed you can contact: Carol Miller, 7 Calder Court, River Way, Andover SP10 5EH
Re-use your own frame and save money in the process!
We will inspect the frame and, assuming it is suitable, will fit the best lenses on the market to suit your personal requirements.
We will prepare the lenses in advance so you need only be without your specs for a couple of days.
When the lenses are ready we will collect the frame and deliver them back to you once the lenses have been fitted. We will also re-adjust the fit of the frame if needed.
Have you ever wondered what all the numbers mean on your prescription?
Yes? OK, so just for you we have tried to explain it all as simply as possible in plain English.
Here is a typical Prescription (sometimes written as Rx) it could be written or typed on plain paper, in a table on an opticians own form or on an NHS prescription form. (see examples below)
R +1.00/-1.50 x 85 Add +2.00 Prism 1.5 out
L + 1.25/-1.75 x 75 Add +2.00 Prism 1 up
bizarrely this can also be written as
R -0.50/+1.50 x 175 Add +2.00 Prism 1.5 Out
L -0.50/+1.75 x 165 Add +2.00 Prism 1 Up
Both will give exactly you the same vision.
You may occasionally come across the abbreviations “ OD, OS & OU”, these are Latin abbreviations for Oculus Dexter, Oculus Sinister and Oculus Uterque which simply means Right eye, Left eye and Both eyes.
The measurements are in Dioptres – usually abbreviated as ‘D’ (A Dioptre is the unit of refractive power equal to the reciprocal of the focal length – sorry that’s a bit technical but unfortunately it is the dictionary definition) . In the example above, this person has 1 dioptre in the Right eye and 1¼ in the Left eye. The lower the number the less short sighted or long sighted you are. A ‘+’ preceding the number denotes long sightedness (Hyperopia) and a ‘-‘ short sightedness (Myopia)
Now for the other abbreviations:-
SPH (sphere) is the part of the prescription that is spherical and denotes long or short sightedness as discussed above. If there are no measurements under CYL or AXIS then your eye is equal in all meridians ( often described as football shaped).
CYL (cylinder) this is the measurement of the amount of astigmatism you have, The higher the number the more astigmatism you have. Astigmatism is just a word that describes the shape of you eye (often described as rugby ball shaped, the higher the number the more rugby ball shaped your eye is). It is this correction in your eye that will determine how sharply you see an image. (similar to fine tuning a TV once the channels have been found).
AXIS This measurement will be between 0 and 180 degrees and denotes the orientation of the astigmatism. Imagine a line drawn through the two points of a rugby ball, this line has to be orientated on the correct axis for you to see clearly. The higher the astigmatism the more accurate this has to be.
ADD This is the extra magnification needed for near vision to correct presbyopia (another word for problems with near vision as you age). This number is always a positive and usually preceded by a ‘+’ sign. Occasionally you may see ‘INTER ADD’ ( or intermediate add) on your prescription, this is when you need a specific prescription for VDU’s or if you have a longer working distance than a normal reading distance. Again this will be a positive number but will be a lower number than the near vision addition.
PRISM This is prescribed when the eyes need a little help to correct a muscle balance defect. With this in the lens, the eyes work together properly and any double vision can be eliminated.
Prism is measured in dioptres with increments of 0.25 or ¼ dioptres. You will notice there is also an indication of direction (up, down, in or out) or combinations of directions (i.e. 2in1up). On a hand written prescription prism is sometimes denoted with a triangle preceding the numbers. The direction indicates where the “base” or thickest part of the prism should be.
Two things to remember:-
A/ a spectacle prescription is different from a contact lens one
B/ Once you have been tested, the prescription is yours to keep,you are not obliged to buy spectacles from the optician that provided the examination. It is worth shopping around though if you have problems they may be more difficult to sort out. However here at One2One we have a no quibble satisfaction guarantee – If we are unable to resolve any issues to your satisfaction we will happily give you a full refund.
Fill out the form or send a direct email to: email@example.com