Your reading glasses lens strength is determined by
- your age
- your reading distance
- if you wear or need prescription eyeglasses for other distances.

Estimate Your Lens Power

Age used to be the main factor in needing reading glasses but long hours at the computer has changed that. It's still helpful to use this timeline as a starting point in determining the correct lens power in your reading glasses at any reading distance.

Fact 01:

You see with your brain. Wearing reading glasses does not make your eyes worse. Your brain and you just get used to seeing things clearly.


As you move your reading glasses down your nose, the magnification increases. If you like to wear your readers low on your nose choose your lens power mindful of this and lower your lens power slightly.

  • 25-30 years old start with +.50 - +.75
  • 30-40 years old +1.00
  • 45 years old +1.50
  • 50 years old +2.00
  • 60 years old +2.00 - +3.00

Where Do You Want To Use Your Reading Glasses

How far you view your reading material also determines your reading glasses lens strength.

Most Reading Distances Are:

-Traditional close reading distance of 14-16 inches- as in reading a book, hand-held device and your keyboard.

-Intermediate computer reading distance of 18-20 inches- about an arms length away and often at a laptop or the lower portion of your monitor.

-Typical computer reading distance of 20-26 inches- straight ahead computer monitor reading.

Fact 02:

Scientific Principle: Focal power is inversely related to focal length- which means when your reading material is further away you need less lens power to read it clearly and as you move your reading material closer you will need more lens power for it to be clear.


Fine tune for sharpness by positioning your screen, seat or reading material a little closer or further away.


Reading Glasses Eye Chart

Read chart at traditional reading distance of 14-16 inches. The first line you have difficulty reading is your suggested lens strength at that distance. For computer reading reduce that strength by about half. As you move further away from your monitor the less lens power you will need to read it clearly.


Computer resolution differences require this chart be printed for accurate results. Actual sizing may vary depending on your computer settings.

Print Chart


Our readers are made with premium-grade CR-39 or 1.56 aspheric optical lenses ground to precise optical standards. Our premium lens treatments maintain lens integrity throughout the life of your wear- all important to reading clearly and comfortably. All of our lenses include a hydrophobic lens coating for easy cleaning and are hard coated for scratch resistance.


Our prescription quality frames are made from premium grade plastics and metals and are designed to fit comfortably and endure daily wear while retaining their luster and looks. Featured collections include women's petite and oversized stylish looks, big man fit with long temples, flexible-lightweight-resilient titanium frames and premium quality basics. All of our readers are suitable for prescription lenses.


Our reading glasses are made from authentic
Optical Grade Premium Lens Materials with Clear + Uniform Lens Surfaces
ground to Precise Ophthalmic Standards, not just acceptable tolerances.

Because lens materials, lens quality, manufacturing standards + measurements are important for clear reading + healthy vision.

Just A Few More Things


Reading Distance:

Reading at a computer screen 18” away will require a different lens power than reading at a screen that is 28” away or reading on your laptop, reading a book on your lap or reading papers on your desk. Choosing your lens power specific to your reading distance will give you the best reading at that distance and it is an important part to eliminating your eyestrain. Many times different corrections are needed for different reading distances.

Wearing Distance:

Some people like to wear their readers down their nose so they can look over them to see the distance and also read up close, like when watching T.V. while reading a newspaper or iPad. If this sounds like you, choose from our reading glasses with extra-long temples so they stay on securely and with a smaller lens depth so you can see over them easily. Lens magnification increases as you move your readers away from your eyes, so adjust your lens strength slightly to compensate.