Understanding your eyeglass prescription
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Reading Eyewear Prescription
Before placing an order, you need to get a prescription from your optician.
In most cases, your doctors prescription should look like the samples shown below. There are several ways of writing an eyeglasses prescription.
- For example, in sample 2 in the example below, the doctors has left out the decimal point.
- In sample 3, both the near and distance vision Rx are printed in the table hence eliminating the need for an ADD column.
- (O.D) refers to the right eye and (O.S) refers to the left eye. SPH, CYL, AXIS , PRISM , ADD are important attributes of a prescription
- Enter your prescription in the online order form exactly as you see it in the prescription table. Blank value should be left blank in the form and care should be taken with +/ - Signs. Corresponding SPH, CYL , AXIS and ADD values should be entered correctly.
The Pupillary Distance or PD is required to position the lens correctly in relation to the center of the pupils.In addition to your prescription, you might need the pupillary distance especially If your prescription does not have it. You may contact your local optician or measure it yourself.
How do I get my eyeglasses prescription?
You can visit your local optometrist/Eye Doctor/Optician who is legally required you to give you your eyeglasses prescription after conducting an eye exam. Make sure to ask them a copy of your prescription when you visit them next, also ask them to write your pupillary distance.
How old can my prescription be?
It refers from person to person and factors such as age and health can be counted in. Ideally, your prescription should not be more than two years old. Please refer to the table below that contains information on how often you should get your eyes tested:
How often should you get an eye exam?
|Under seven years old||Every six months|
|Seven to 16 years old||Every year|
|16 to 59 years old||Every two years|
|60 to 69 years old||Usually every two years, but sometimes every year|
|Over 70 years old||Every year|
How often should you get an eye exam
|If you are diabetic||Every year|
|If you or a member of your family has glaucoma||Every year|
An eye exam is one of the simplest appointments to make and the process does not take more than 15 minutes. So, we highly recommend that if your prescription is more than 2 years old, then you must visit your optician to get a new one unless you are extremely confident that your prescription has not changed.