For computer or task-specific visual needs, the Tween lens will keep your up-close work in the clear.
The Tween has a wider near vision region, and a soft design that eliminates swim effect and perceived lateral distortion. The lens promotes easy adaption and supports frame customization.
Tween delivers clear vision from reading distance up to 4 meters (13 ft.) and offers three clear distance vision options (4 ft; 7 ft; 13 ft.).
Tween comes with seven available degressions (+0.75 to +2.25), and two minimum fitting heights (14 & 18mm).
Note: The Tween’s distance area performs best with a minimum of 10mm of viewing area above the fitting cross.
Clear: CR-39, Trivex®, Poly, 1.60, 167
Total powers: +8.00 to -6.00
Cyl. to -5.00
Adds +0.75 to +3.50
Prism to 4.00D
2 Min. Fitting Heights: 14 & 18mm
*Order by the Clear Distance Vision at top of lens:
Tween 1.3 is Reading to 4 ft.
Tween 2.0 is Reading to 7 ft.
Tween 4.0 is Reading to 13 ft.