Accommodating multiple lens assembly
An intraocular lens assembly including a first lens and a second lens, a haptic, and a first leverage arm connecting the first lens to the haptic and a second leverage arm connecting the second lens to the haptic, the first and second lenses being arranged one in front of the other defining an anterior-posterior axis that passes perpendicularly through centers of the first and second lenses, wherein a width of the haptic extends beyond at least one of the first and second lenses in at least one direction parallel to the anterior-posterior axis.
1 . An intraocular lens assembly comprising:
a first lens and a second lens;
a haptic; and
a first leverage arm connecting said first lens to said haptic and a second leverage arm connecting said second lens to said haptic, said first and second lenses being arranged one in front of the other defining an anterior-posterior axis that passes perpendicularly through centers of said first and second lenses, wherein a width of said haptic extends beyond at least one of said first and second lenses in at least one direction parallel to said anterior-posterior axis.
2 . The intraocular lens assembly according to claim 1 , wherein both said first and second lenses are adapted to move anteriorly along said anterior-posterior axis to achieve an accommodative effect.
3 . The intraocular lens assembly according to claim 1 , wherein said first leverage arm connects a perimeter of said first lens to said haptic and said second leverage arm connects a perimeter of said second lens to said haptic, wherein at least one of said first and second leverage arms is adapted to apply a lever force on its corresponding lens acting generally along a chord inwards of a perimeter of its corresponding lens.
4 . The intraocular lens assembly according to claim 1 , wherein said first lens is a positive lens and said second lens is a negative lens.
5 . The intraocular lens assembly according to claim 4 , wherein said positive lens comprises a higher diopter positive optic portion, and said negative lens comprises a lower diopter negative optic portion.
6 . The intraocular lens assembly according to claim 2 , wherein a distance between said first and second lenses does not change as said lenses move anteriorly.
7 . The intraocular lens assembly according to claim 2 , wherein a distance between said first and second lenses changes as said lenses move anteriorly.
8 . The intraocular lens assembly according to claim 1 , wherein said first and second leverage arms have different lengths.
9 . The intraocular lens assembly according to claim 1 , wherein said first and second leverage arms are attached at different points along peripheries of said first and second lenses, respectively.
10 . An intraocular lens assembly comprising:
a first lens and a second lens;
a haptic; and
a first leverage arm connecting said first lens to said haptic and a second leverage arm connecting said second lens to said haptic, said first and second lenses being arranged one in front of the other defining an anterior-posterior axis that passes perpendicularly through centers of said first and second lenses, wherein both said first and second lenses are adapted to move anteriorly along said anterior-posterior axis to achieve an accommodative effect.
11 . The intraocular lens assembly according to claim 10 , wherein said first leverage arm connects a perimeter of said first lens to said haptic and said second leverage arm connects a perimeter of said second lens to said haptic, wherein at least one of said first and second leverage arms is adapted to apply a lever force on its corresponding lens acting generally along a chord inwards of a perimeter of its corresponding lens.
12 . The intraocular lens assembly according to claim 10 , wherein said first lens is a positive lens and said second lens is a negative lens.
13 . The intraocular lens assembly according to claim 10 , wherein said first lens is a negative lens and said second lens is a positive lens.
14 . The intraocular lens assembly according to claim 10 , wherein a distance between said first and second lenses does not change as said lenses move anteriorly.
15 . The intraocular lens assembly according to claim 10 , wherein a distance between said first and second lenses changes as said lenses move anteriorly.
16 . The intraocular lens assembly according to claim 10 , wherein said first and second leverage arms have different lengths.
17 . The intraocular lens assembly according to claim 10 , wherein said first and second leverage arms are attached at different points along peripheries of said first and second lenses, respectively.
18 . An intraocular lens assembly comprising:
a first lens and a second lens;
a haptic; and
a first leverage arm connecting said first lens to said haptic and a second leverage arm connecting said second lens to said haptic, said first and second lenses being arranged one in front of the other defining an anterior-posterior axis that passes perpendicularly through centers of said first and second lenses, wherein said first and second leverage arms are adapted to apply leverage to and move said first and second lenses along said anterior-posterior axis to achieve a combined positive diopter accommodative effect.