- How it Works
July 24, 2019
As you age and develop, your eye prescription will change… And so will many other aspects of your vision! Health experts recommend regular vision tests so you can track vision changes and protect your vision long term.
You probably know the purpose of your eye prescription is to give you the numbers you need to correct your vision. But what do those numbers really mean?
Your eye prescription will contain:
This is the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. If there is a minus sign (-), it means you are nearsighted. If there is a plus sign (+), it means you are farsighted.
If you have astigmatism, this is the lens power number to correct it. If you don’t have astigmatism or have very low levels of astigmatism, you won’t have a cylinder number.
The number for axis is the degree and direction of your astigmatism.
If you have presbyopia, you will have an ADD number to your prescription. ADD is the added magnifying power applied to the lower part of your glasses to correct presbyopia. The number appearing in this section of the prescription is always a “plus” power, even if there is no plus sign.
Here’s how your eye prescription may change as you age:
This is the recommended eye exam frequency based on age by the American Association of Optometry:
Under 3 years old: every 6 months
3-25 years old: every year
26-45: every two years
45-65: every year
65+: every 6 months
Most vision insurance plans only cover one annual eye exam with your eye doctor. What if you want to stay up-to-date with your vision changes? This is why EyeQue developed the award-winning VisionCheck.
With VisionCheck, you can test your eyes and monitor vision changes anytime you want from home, work, or any other location. This device provides you with real-time results you can access on your smartphone or desktop computer. VisionCheck provides you with EyeGlass Numbers that you can use to order glasses online from select retailers.
The VisionCheck is EyeQue’s second-generation Bluetooth-powered refractometer that measures your refractive error, i.e. your nearsightedness, farsightedness, and astigmatism.Buy Now