The Neoptics
lens combines a neutral central zone
with a peripheral optical
zone of up to plus three
dioptre. This bifocal design delivers
two images on
the retina simultaneously: Each specific point
of focus
is delivered as both a sharp and a blurred image.
In distance vision the sharp image results from combi-
ned
refractive effects of the part of the pupil surround-
ing
the lens and the central (neutral) zone of the lens.
The
rays of light from a distant object going through
the optical
zone of the lens will be out of focus at the
macular plane
resulting in a blurred image. Science
and experience to date
indicate that neural adaptation
will result in the blurred
image being ignored by the
visual system. |
Focusing
on a near object, the line of vision in the im-
planted eye
will pass through the centrally implanted
lens. The peripheral
positive refractive power of the
lens will provide near vision
correction and create a
clear macular image. The images from
a near object
which do not travel through the optical zone
of the lens
will be out of focus at the macular plane. The
resultant
blurred image will be ignored by the visual system.
Neoptics’ intra-corneal lens implant is made of a hydrophilic
acrylic which is categorized as hydrogel.
It combines a range
of good optical and mechanical properties with biocompatibility.
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