Understanding the prescription:
Things that needs to be considered while prescribing glasses:
- Give careful consideration to whether the SPH and CYL are positive or negative.
- A typical single-vision eyeglasses prescription without astigmatism just needs the SPH. You will likewise require your Pupillary Distance (PD), which might be incorporated on your prescription as two numbers; add these numbers together and you have your PD. In the event that your Prescription does exclude your PD, you have a couple of alternatives. In the first place, you can contact your optometrist and they may give it to you. You can likewise go to a neighbourhood optician and have them measure it. Or on the other hand, you can quantify it yourself.
- On the off chance that a number isn’t in the CYL and AXIS spaces, there is no value for either.
- You will just have an ADD measure in the event that you wear bifocals/progressives.
- SPH, CYL, and ADD are composed with decimals. In some cases there are no decimal focuses on the prescription. You at that point get the opportunity to include them in. (Case: a SPH composed as “175” is “1.75” and an ADD composed as “25” would be “2.50.”)
- Once in a while, the presciption won’t be written on a genuine network. The numbers will be that as it may, likely be composed by the framework appeared, with OD to finish everything, OS on base, with segments SPH, CYL, AXIS, and so forth.
- On the off chance that you see the word PLANO in the line of boxes for one eye, you require a “balance lens” for that eye. A balance lens is a non prescription lens; you require one if just a single of your eyes requires vision correction.
- Last, however not minimum, if both of your eyes have a similar corrections, just a single line of numbers might be your Prescription composed of.