Have you ever tried looking at your prescription at least once after you have visited your optometrist? Do you even bother reading the details when you order for a pair of finished frames? If you wear glasses or have been a regular user of contact lenses, you should learn to understand the terminology for your glasses online.
When you order in the prescription glasses from the opticians, you need to understand the language of the prescription to clear any confusion. It may sound a little daunting, but just in case if you are in the dark when you lose the prescription, this perfunctory knowledge can help save the day!
Notice the Numbers :
The most important mystery terms and abbreviations are OD or Oculus Dextrus and OS or Oculus Sinister. These are the Latin terms in use that indicate the right eye and left eye. Listed next to the OD and OS terms are the numbers that denote the + sign or even the – sign. If you have a plus sign, you are farsighted and suffer from hypermetropia.
In case you have a minus sign in your prescription, it means that you are nearsighted or have myopia. Most of these numbers are measured in dioptres – the unit of measurement that always indicates how much a person has skewed eyesight. Diopters are designated as a simple D; therefore if the number is an OD -2.5 – it means that you have nearsightedness in your right eye. A positive number may indicate farsightedness in your other eye.
Astigmatism:
You may also suffer from astigmatism and it commonly is referred to as S x C x Axis. The S stands for spherical indicating the roundness of the eye and can both be a positive or a negative number. The C stands for the cylindrical shape and is the optician’s word for astigmatism. This number can both be positive and negative. The larger the dioptre number, you have great astigmatism in your eyes.
The Axis is the last number in the prescription and can be a number from 0 to 180, is measured in degrees. This axis denotes the exact position of astigmatism and is critical in determining the glasses made for your vision.
Order in Online:
Ordering your affordable designer glasses from Optically can be very easy if you know how to decipher the numbers on paper. Most optometrists advise patients to understand their prescription before ordering glasses. You can choose spherical or even cylindrical lenses for your rimless glasses based on your reading.
Select the best pair of Rx sunglasses made to order at Optically. Now you can grasp the basic figures indicating your vision quality all and sundry. The next time you order online for your vast collection of eyewear, you can read your optometrist’s prescription and know what to order in optical frames!