xiaowei
If you see contour plot of panamic ... you will see it soft and smooth.
But it narrow of clear of vision area.
Which lens have less clear vision area ... that lens is more soft and more
comfort.
which lens have wide clear vision area ... that lens is wide vision field but
more distortion.
# clear vision area : the area that no have unwant astigmatism.
exsample
hard design ... is more clear vision area But more distortion
soft design ... is less clear vision area But less distorion
Advance soft design ... is little clear vision area But more comfortable.
In news wearer ... the first thing that he feel ... the visual field and comfort of vision
People often mention blurriness and difficult transitions from one visual zone to the next.
For first driver ... everyone is difficult when will change to left or right
he will see the front mirror and see the side mirror
for old driver .... this is bread and butter ... feel natural easy easy
If who never drive truck ... he don't known ... the sedan can is soft.
If he never drive toyota vios ... he never know ... toyota camry is soft.
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