Hi Gangsterkia,Hi there! Apologies for the inc WOT.
The effects of antifatigue/digital lenses like hoya sync 3, Essilor eyezen or Zeiss digital lens/energizeme, is in a way felt naturally. You won’t feel like when you put it on and , suddenly, oh the computer or documents are a lot better.
The lenses with the add power at the bottom generally relaxes your eye muscles throughout the day. The add power at the bottom will take the load off your accomodative muscles so instead of 100% used throughout the day, maybe 60%?(the concept).
Regarding the 2-3 viewing zones, generally as digital lenses/antifatigue lenses have lower add(lao hua power/presbyopia power) as compared to progressives, thus the zones are more compact and why I mentioned antifatigue lenses have 2 zones usually. But as the add power increases like progressive +1.50 and above, the distinction between the viewing area becomes more obvious, thus the distance,intermediate and near zone as compared to antifatigue which is generally distance and near.
Such lenses is really easy to get adapted too. The degree at the bottom is decided by your practitioner based on your visual tasks, such lenses have default add like
Zeiss digital lenses-25,50,75,100,125
Eyezen-0.4/0.8 and one more…
Hoya sync 3-0.53,0.9,1.32
Thus your practitioner will and should be able to recommend a suitable add for you.
Thanks for responding, not sure on some terminology so apologies in advance if there is any parts that I interpret wrongly.
You mentioned that the add power at the bottom generally relaxes your eye muscles throughout the day. This is because it reduce the overall degree. (For example R : -5.00 +0.4 = 4.6 ?)
Add power for laohua/presbyopia is actually reducing the power so that they can see clearly ? Same as above example or it sort of like adding a magnifying lens so that they can see clearly.
In yr opinion,do u think It worth to invest with a anti fatigue glasses where a 1.67 lenses cost $410 and whether did the shop quoted on the higher range without any discounting?