To buy glasses online with the SPEQS website or App, we will need your prescription to create the perfect glasses for you! We will help you understand your prescription to add into our online forms and purchase the perfect pair of glasses or sunglasses. You can ask your Optometrist for your prescription and it will most likely be presented in a table format.

There are abbreviations on the left-hand side and along the top of your prescription. These abbreviations are the measurements of certain parts of your vision, combining these measurements gives us the precise lens for your eyesight. If you need assistance, please contact us so we can help you.

Defining the terms:

SPH or Sphere: This is the strength of your prescription to correct your focus. The power determines how strong the lenses need to be and the magnifying power to adjust your vision

If you are long-sighted (Hyperopic), the prescription will have a + sign in the SPH box. This can make it difficult to see things close to you, for example, a newspaper, phone screen, restaurant menu.

If short-sighted (Myopia), the prescription will have a – sign in the SPH box, this means that it may be difficult to see things further away such as street signs. Larger numbers around 6.00 require a stronger prescription lens meaning that lenses may be thick. This is important to consider with selecting frames as lenses can become thicker than the frame, causing lenses to stick out. Grinding for – lenses, for myopia, will not reduce edge thickness. If you have short-sighted lenses, it is ideal to select a thinner, high index lens.

Semi-rimless and Rimless will automatically be grinded at no cost. Grinding can work for + lenses, prescribed for Long-sightedness (Hyperopia).

CYL or Cylinder: This feature expresses astigmatism. This is a condition of the eye where the front surface or lens inside of the eye is irregularly shaped or curved differently in another direction. The main side effects of this is a distorted or blurry vision. CYL is the lens measurement details to determine the strength for fixing this.

Axis: The direction and degree of astigmatism. This shows us whereabouts the astigmatism is on the eye.

ADD or Addition: This is short for Reading Addition. This correction is for reading glasses, bifocal or in the lower half of multifocal lenses. ADD determines the power needed in addition to the prescription. This may appear once on the prescription but is meant for both eyes equally. This is measured in Dioptre and also used to correct Presbyopia, the loss of focus on close objects.


O.D. Oculus Dexter, your right eye.

O.S.  Oculus Sinister, your left eye.

O.U. Oculus Uterque, both eyes.


Prism: Glasses with an added Prism are used to correct vision for Diplopia. This can mean that the viewer is seeing two images separately, rather than one merged vision – This can also be called double vision. A prism can also be added if vision is flat instead of 3D. Prisms are an aid for the eyes to work together to create a single, merged 3D vision for the viewer.

Now that we’ve debunked the abbreviations, we know how these measurements are relevant to our eyesight and what each part means. Inputting this data into the App is as easy as following the table from the optometrist. Keep this data handy by taking a photo of the table on your phone or writing it in your notes section

Step by Step Guide – Adding Prescription on the App:

Getting to the Prescription page:

Use the Live Try-On feature to check how a pair of glasses will look on your face.
Select the green ‘BUY’ button in the top right corner of the screen
Select green ‘CHECKOUT’ button to proceed to the CART

Adding the Prescription:

  1. In the CART, scroll down to the name of the frames being purchased
    Select the black ‘ADD PRESCRIPTION’ button
  2. A box will slide across with prescription options, use the ‘X’ in the top right to go back to cart if you are not adding prescription
  3. If you need help understanding your prescription, please contact us and we’ll help you!
  4. Following the table on the prescription given to you by an optometrist, use the drop down menus to add measurements for SPH (Sphere), CYL (Cylinder), Axis and ADD (Addition).
  5. ‘Add Prism’ option must be selected if written on your prescription. Add these details following the table and input the numbers. If you need help with this, please contact us.
  6. Select Pupillary Distance, this can be calculated on the App, or found under the heading PD on your prescription. This measures the space between the pupils of your eyes, allowing us to match your eyes with the optical center of the lenses in your new glasses.
  7. Then, select the lens type. Single Vision Distance is most common, each selection has a small description to let you know which lenses suit your specific needs.

Semi-rimless and Rimless will automatically be grinded at no cost.

Grinding for – lenses, for Myopia, will not reduce edge thickness. If you have – lenses, it is ideal to select a thinner, high index lens.

Lastly, select any lens features for your eyewear. Selecting no features is available also.

Finalising the purchase:

  1. Proceed to review your prescription and purchase
  2. Use the ‘EDIT’  buttons to change any details.
  3. Tick the checkbox below the price total to confirm that your prescription is yours and valid.
  4. Select green ‘PROCEED TO CHECKOUT’ button
  5. Add postage and shipping details