Your Prescription Explained

Prescription

Right eye

   Left eye 

Is measured in Dioptres and shows how long or short sighted you are. If you are long sighted, the number in the sphere column will have a plus (+) before it. Conversely, if you are short sighted, the number will have a minus (-) before it. The higher the number the thicker the lenses will be. If the word ‘plano’ or ∞ is used this indicates zero power for this section.

Is a measure of the amount of Astigmatism that needs to be corrected. Astigmatism is when your eye is irregularly shaped, rather than round. If you see a DS in this box it stands for ‘Dioptre Sphere’and means the Customer has no astigmatism.

Gives us the direction of the astigmatism and is measured in degrees from 1 to 180. This is only stated if there is astigmatism in the prescription.

This is the power added on to the distance prescription to enable people who need reading glasses to focus on close work. It is always written as a positive number, and is usually in the range +0.75 to +4.00.