What is an eyeglass prescription
An eyeglass prescription is a written order issued by your eye doctor after an eye exam, specifying all the measruements and parameters which may be used to produce eyeglasses for you.
How to get your prescription
In the US, eye doctors are required by “Eyeglass Rule” to release a copy of your prescription after each eye exam at no extra cost.
In 1978, the Federal Trade Commission passed a regulation rule known as Ophthalmic Practice Rule, or Eyeglass Rule. The rule requires eye doctors (optometrists or ophthalmologists) to give patients their eyeglass prescriptions at no extra cost. Based on the rule, you can ask for a copy of your prescription from your eye doctor after an eye exam.
Many doctors want you to buy your eyewear from them because this is where they make most of their profits. To prevent you from buying online some doctors will exclude the Pupillary Distance (PD) from the prescription. Though some online stores recommend ways of measuring your PD by yourself in front of mirror or by your family member using a regular ruler, we use a patented software to digitally calculate a highly precise PD that is even more accurate that the one that your doctor calculates. We provide PD Measurement as a free service.