System for calculating IOL power
First Claim
1. An apparatus to improve ophthalmic surgery patient wellness and surgical procedural outcome in both indicated cataract surgery and for elective surgeries using permanent, implantable intraocular lens devices, such as IOL (monofocal) and NTIOL (accommodative and multifocal), by facilitating the measurement of refraction proceeding removal of the natural lens and preceding the insertion of the IOL or NTIOL.
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Accused Products
Abstract
The present invention relates to methods and apparatus to improve human ophthalmic surgery patient wellness and surgical procedural outcome of both indicated cataract surgery and elective surgeries with the implantation of permanent standard intraocular lens (IOL) and new technology intraocular lens (NTIOL). The present invention further relates to measurement of refraction intra-operatively to validate or obviate the pre-operative calculations and thus selection of the IOL or NTIOL and allow for a correction to be made intra-operatively before the permanent IOL or NTIOL is implanted. Specifically, several embodiments of the invention pertain to a disposable, temporary Proxy Lens apparatus that are used for in situ refractive measurements, an Insertion Tool apparatus to manipulate the Proxy Lens within the optical path for the refractive measurement and a Refractometer apparatus to perform the refractive measurements.
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Citations
28 Claims
- 1. An apparatus to improve ophthalmic surgery patient wellness and surgical procedural outcome in both indicated cataract surgery and for elective surgeries using permanent, implantable intraocular lens devices, such as IOL (monofocal) and NTIOL (accommodative and multifocal), by facilitating the measurement of refraction proceeding removal of the natural lens and preceding the insertion of the IOL or NTIOL.
Specification