6 results about "Aphakia" patented technology

Systems, devices and methods to overcome IOL deficiencies are disclosed by providing at least one of a phakic or aphakic IOL to provide correction of defocus and astigmatism, reduce higher order monochromatic and chromatic aberrations and provide extended depth of field to improve visual quality. The IOL includes a virtual aperture integrated into the IOL. The structure and design allow light rays that intersect the virtual aperture and are widely dispersed across the retina, effectively preventing the light rays from reaching a detectable level on the retina. The virtual aperture helps to eliminate monochromatic and chromatic aberrations, resulting in a high-definition retinal image. The depth of field is increased on larger diameter optic zone IOLs for a given definition of acceptable vision.

The invention relates to an artificial capsular bag for housing an intraocular lens (IOL) implant in aphakic eyes. The capsular bag features a discoid element with an internal space designed to receive the IOL. This element comprises an anterior surface with a central opening for IOL access, a posterior surface with multiple holes for viscoelastic fluid drainage, and a peripheral wall connecting these surfaces. Supporting elements are symmetrically positioned along the peripheral wall to secure the capsular bag within the eye chamber.

The present invention provides an innovative system for correcting aphakia in the absence of a natural capsular bag. It comprises a foldable artificial capsular bag made of biocompatible material, traversed by polypropylene 6-0 threads extended by thin pliable needles, allowing stable and precise scleral fixation. A specialized injector equipped with a cartridge having a single longitudinal opening facilitates insertion by positioning the threads without overlapping. This cartridge closes firmly after folding, ensuring stability during injection, while being compatible with standardized injectors. An ergonomic intraoperative stabilization headband, positioned on the forehead of the patient, holds the injector in place by virtue of inverted supports, improving surgical precision and reducing unnecessary manipulations. This system simplifies surgery, reduces complications and optimizes the visual results.

The invention discloses a modular intraocular implantation device, which is suitable for non-crystalline-lens eyes, crystalline lens dislocation with or without iris defect or dysplasia with refractive correction and intraocular structure reconstruction requirements, and comprises a tension balance mechanism, an open cystic structure and a simulated iris structure. The tension balancing mechanism is made of biological elastic materials, and sclera fixing units are arranged in the circumferential direction. The open bag-shaped structure is provided with an open space, the inner surface is provided with micron-sized anti-slip textures to prevent rotation, the edge of an opening is provided with an anti-adhesion supporting structure, a hole is reserved in the center of a posterior bag, and communication holes can be formed in the periphery of the front surface to communicate anterior and posterior chambers, drain aqueous humor and balance intraocular pressure. Point supporting is upgraded into face supporting and ring supporting, automatic centering is achieved through uniform radial force of the ring, and long-term stability is remarkably improved through multi-point positioning. The modular design supports the operation strategy of staged implantation, and an innovative solution is provided for meeting the individualized treatment requirements of complex anterior segment lesion cases.

A system and method for controlling illumination sources are provided. One method includes receiving a request to change the illumination output for one or more light sources, identifying the total aphakia irradiance, identifying the normalized standard deviation of the total aphakia irradiance, and identifying the peak total aphakia irradiance based on the total aphakia irradiance and the normalized standard deviation of the total aphakia irradiance. The request includes a requested light level. If the peak total aphakia irradiance is less than or equal to the aphakia irradiance limit, the illumination output is changed based on the requested light level. If the peak total aphakia irradiance is greater than the aphakia irradiance limit, the requested light level is reduced until the peak total aphakia irradiance is less than or equal to the aphakia irradiance limit, and the illumination output is changed based on the reduced requested light level.

An artificial lens capsule is provided for use during cataract surgery or in cases of aphakia (absence of lens) or posterior capsule rupture (PCR). A common complication during cataract surgery is the rupture of the posterior capsule, preventing the placement of a monofocal intraocular lens in the lens capsule due to inadequate support. Typically, a 3-piece, long haptic intraocular lens can be placed in the ciliary sulcus or capsule if the monofocal intraocular lens is sufficient. However, for placing a toric (astigmatism correcting) or presbyopia-correcting intraocular lens (multifocal), there are currently no options for a 3-piece sulcus-fixated lens. The artificial capsule disclosed herein can be inserted and supported by the anterior capsular rim or sutured into the sclera if capsular support is inadequate. This provides a stable region for placing a single-piece toric or presbyopia-correcting intraocular lens, thereby enhancing the options for lens placement in cases of inadequate capsular support. The device can also be a reservoir for other future intraocular and / or drug-eluting devices.