Pseudophakic Contact Lens Haptic Anchoring Under the Anterior Capsular Leaflet

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Solution Overview

Problem

Conventional methods for correcting residual refractive errors after intraocular lens implantation are invasive, unpredictable, and carry high surgical risks, with existing devices difficult to remove and prone to inducing visual aberrations.

Innovation Solution

An intraocular pseudophakic contact lens with haptics that secure to the anterior leaflet of the capsular wall, allowing for easy implantation and adjustment of refractive error correction, featuring haptics with textured surfaces or pins to anchor the lens in place, and optionally including segments to space the lenses apart for improved optics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional methods (IOL replacement, ablation surgery, piggyback IOL, ICL insertion) are used to correct residual refractive error, then refractive correction is achieved, but surgical risk and invasiveness increase

Engineering Contradiction:

Improvesurgical safetyVSAvoidrefractive correction capability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The anterior chamber lens is designed to serve multiple functions: it acts as both an intraocular lens (providing primary refraction) and a contact lens (correcting residual refractive error). The lens can correct spherical, cylindrical, and asymmetric refractive errors while maintaining a single-device solution that reduces surgical complexity and risk compared to multiple separate procedures

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The lens incorporates segmented optical zones including a central optical zone and peripheral optical zones with different refractive powers. This segmentation allows the lens to address multiple types of refractive errors simultaneously (spherical correction in central zone, astigmatism correction in peripheral zones) while maintaining a single implantable device structure

Inventive Principle:

Principle #1Segmentation

2Ease of repair

If existing correction devices are implanted, then refractive error is corrected, but device removal and reversal become difficult

Engineering Contradiction:

Improvedevice removabilityVSAvoidcorrection stability

Core Design Contradiction:

Ease of repairVSReliability

Solution Approach 1:

The lens is designed with dynamic positioning capabilities through haptics that can be adjusted post-implantation. The optical zones can be repositioned or reoriented to optimize visual outcomes, and the lens can be removed or replaced if correction needs change, providing both stability during use and flexibility for future adjustments

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The lens incorporates preliminary alignment features including orientation marks and asymmetric designs that facilitate correct positioning during implantation. These features ensure the lens is initially positioned optimally while also enabling future repositioning if needed, balancing immediate correction stability with future adjustability

Inventive Principle:

Principle #10Preliminary action

3Object-affected harmful factors

If existing correction devices are used, then refractive error is addressed, but visual aberrations are induced

Engineering Contradiction:

Improvevisual aberration reductionVSAvoidrefractive correction precision

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The lens employs local quality variations through different optical zones with specific refractive powers tailored to their locations. The central optical zone provides spherical correction while peripheral optical zones address astigmatism and higher-order aberrations. This localized optimization reduces overall visual aberrations while maintaining precise refractive correction across the visual field

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The lens utilizes curved surfaces and spherical aberration control through aspheric designs in the optical zones. The curvature variations in different zones help minimize spherical aberration and other optical distortions, improving image quality while maintaining effective refractive correction

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS12447007B2Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method

Publication Date: 2025.10.21 ONPOINT VISION INC

AI summary

An apparatus includes an intraocular pseudophakic contact lens having an optical lens and haptics extending radially from the optical lens. The haptics are configured to be inserted under an anterior leaflet of a capsular wall in an eye in order to capture and confine the haptics under the anterior leaflet. Anterior surfaces of the haptics are configured to contact an inner capsular wall surface at the anterior leaflet. Posterior surfaces of the haptics include ridges configured to contact at least one edge of an artificial intraocular lens and capture the artificial intraocular lens between the ridges. The anterior surface of each haptic includes one or more divots or holes.