Question 1

What are Extended Vision (EV) readers?

Accepted Answer

Extended Vision readers are advanced reading glasses with digitally surfaced lenses that provide clear vision across multiple distances. Unlike traditional readers that only focus at one distance (typically 14-16 inches), EV readers offer a graduated focal range from 18 inches to 6 feet (EV6), 20 feet (EV20), or infinity (EVinfinity).

Question 2

What is the difference between EV6, EV20, and EVinfinity?

Accepted Answer

EV6 provides clear vision from 18 inches to 6 feet, ideal for computer work and desk tasks. EV20 extends to 20 feet, perfect for home and office environments where you need to see across a room. EVinfinity offers vision from 18 inches to infinity, designed for outdoor activities where you need both near and distance vision.

Question 3

How are EV readers different from progressive lenses?

Accepted Answer

EV readers provide a wider, more comfortable reading zone than progressives. While progressives divide the lens into narrow corridors for different distances, EV readers use digitally surfaced technology to maximize the usable area for your primary viewing needs, reducing head tilting and eye strain.

Question 4

Do I need a prescription for EV readers?

Accepted Answer

EV readers are available in standard magnification powers (+1.00 to +3.00) without a prescription. For those with astigmatism or specific vision needs, Custom Rx versions are available for EV6 and EV20. EVinfinity is only available in non-prescription magnifications.

Question 5

Which EV reader is best for computer work?

Accepted Answer

EV6 is specifically designed for computer and desk work. Its 18-inch to 6-foot focal range covers your screen, keyboard, documents, and immediate workspace. The lenses include blue light filtering to reduce digital eye strain during extended screen time.