Posterior chamber phakic intraocular lens
AssigneeAlcon Manufacturing, Ltd.
InventorsSon Tran, Yin Yang
Life of this patent
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Abstract
A posterior chamber phakic lens made from an elastomeric, foldable, highly biocompatible and permeable material. The lens has a generally circular optic and a plurality of integrally formed, filament-like haptics. The haptics project posteriorly from the optic and contain a raised feature or ridge that is sandwiched between the posterior iris and the zonules when implanted in an eye. Such a construction has a low vaulting force under compression, is size insensitive, provides for a stable lens once implanted in the eye, helps to avoid pupillary blockage and allows for improved aqueous flow around the natural lens.
Claims6
An intraocular lens, comprising;
- a) an optic having an anterior face;
- b) a plurality of haptics having distal tips, the haptics integrally formed with the optic and projecting outwardly and posteriorly from the optic;
- and
- c) a ridge formed the haptics between the optic and the distal tips, the ridge projecting anteriorly of the tips, but posteriorly of the anterior face of the optic.
An intraocular lens, comprising;
- a) an optic having an anterior face;
- b) a plurality of haptics having distal tips, the haptics integrally formed with the optic and projecting outwardly and posteriorly from the optic;
- and
- c) a ridge formed the haptics between the optic and the distal tips, the ridge projecting posteriorly of the tips.
An intraocular lens, comprising;
- a) an optic having an anterior face;
- b) a plurality of haptics having distal tips, the haptics integrally formed with the optic and projecting outwardly and posteriorly from the optic;
- c) a first ridge formed the haptics between the optic and the distal tips, the first ridge projecting anteriorly of the tips, but posteriorly of the anterior face of the optic;
- and
- d) a second ridge formed the haptics between the optic and the distal tips, the second ridge projecting posteriorly of the tips.
Dependencies are inferred from the claim text.