Perceived lens power 6 25 1 0 014 6 25 5 75.
Prescription contact lens power chart.
The unit of measure for sphere power is a dioptor or d.
Research suggests that it s important to double check that the contacts you receive are the same ones your doctor prescribed before you wear them.
If you are using your glasses prescription to order contact lenses online you may be ordering the wrong power in your contacts which can lead to blurred vision eyestrain and headaches.
Please be aware that a contact lens prescription is different to a glasses prescription so you cannot.
A contact lens prescription provides additional information about the size of the lens not just information about the power and the power will also be different because while a contact lens sits directly on the surface of the eye eyeglasses sit about 12mm in front of it.
Name expiry date.
Contact lens manufacturers make lenses in 0 25 d power increments.
Eye power sphere bc dia and brand.
Sphere power is the primary power in the lens to correct either hyperopia farsightedness or myopia nearsightedness.
Your prescription should also contain the name of your contact lens e g.
Vertex distance convsersion chart for converting eyeglass prescription to contact lens.
In charts like these the middle columns the pink column in the chart above is the power the corresponds to the glasses.
You could use the formula.
Reading the contact lens power.
The columns on either side blue and green represent the equivalent power of contact lenses.
Acuvue oasys and an expiry date which is usually a year from the date of your check up.
Below is an example of the prescription listed on the side of the box for 1 day acuvue moist for astigmatism.
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On the contact lens box read the prescription information from left to right.
The eye column will contain either od os or ou which mean right eye left eye or both eyes respectively.
Sphere power is positive if you are farsighted and negative if you are nearsighted.
Find the number on the glasses prescription in the middle column.
Or we can simply refer to the vertex distance conversion chart.
Typically a contact prescription contains a brand name lens base curve lens diameter and lens power so you can easily order the right corrective lenses.
The prescription should unfold in the following way.