Crystalline Lens Laser Shot Patterns for Restoring Accommodation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current treatments for presbyopia and cataracts, such as artificial accommodative Intraocular Lenses (IOLs), offer limited accommodative amplitude and pose risks, while surgical techniques for cataracts are invasive and not widely adopted for presbyopia due to the need for reading glasses.

Innovation Solution

A laser-based system and method for treating the natural human crystalline lens with precise laser shot patterns, determining the lens's shape and position, and applying varying laser powers to address opacifications and increase accommodative amplitude, using lasers with specific wavelengths, pulse widths, and energies to cause photodisruption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If artificial accommodative Intraocular Lenses (IOLs) are used to treat presbyopia, then accommodation function is restored, but the accommodative amplitude is limited and surgical risks are introduced

Engineering Contradiction:

Improveaccommodation functionVSAvoidsurgical risk and limited amplitude

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The natural lens is treated to restore its own accommodative function through laser-induced structural changes, eliminating the need for artificial IOLs and their associated surgical risks. The lens serves itself by regaining accommodation capability through photodisruption of nuclear material.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Dense nuclear material that impedes accommodation is selectively removed through laser photodisruption, reducing nuclear density and restoring lens flexibility without requiring complete lens replacement or artificial substitutes.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If surgical techniques are used for cataracts, then visual function is improved, but the procedures are invasive and require reading glasses for presbyopia

Engineering Contradiction:

Improvevisual functionVSAvoidinvasiveness and additional corrective needs

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The laser treatment system performs multiple functions: it treats cataracts by fragmenting nuclear material, restores accommodation amplitude, and corrects refractive errors, all through a single non-invasive procedure, eliminating the need for separate surgeries and reading glasses.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mechanical surgical intervention is replaced with optical laser energy delivery. The laser system uses photodisruption to fragment lens material and induce structural changes without physical contact or incisions, replacing invasive mechanical surgery with non-contact optical treatment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If laser shot patterns are applied to the lens, then accommodative amplitude increases and cataracts are addressed, but precise determination of lens shape and position is required

Engineering Contradiction:

Improveaccommodative amplitudeVSAvoidlens positioning accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system uses real-time feedback from imaging systems to detect lens shape and position, then adjusts laser shot patterns accordingly. Optical coherence tomography or other imaging modalities provide continuous feedback on lens morphology, enabling precise targeting of laser energy to achieve desired accommodative changes.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system varies laser parameters (energy, pulse duration, shot pattern density) based on measured lens properties. By adapting laser delivery parameters to the specific patient's lens characteristics, the system achieves precise control over accommodative amplitude enhancement while accounting for individual anatomical variations.

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances treatment efficacy by providing reproducible and precise laser shot patterns that improve accommodative amplitude and address cataracts, reducing the need for invasive surgeries and improving visual function.

Implementation Method 1

applying varying laser powers to address opacifications and increase accommodative amplitude, using lasers with specific wavelengths, pulse widths, and energies to cause photodisruption

Methodology Applied

Scientific EffectPhotodisruption: Photodissociation

Data Source

PatentUS12502312B2Laser methods and systems for addressing conditions of the lens

Publication Date: 2025.12.23 LENSAR INC

AI summary

Systems and methods for performing laser cataract surgery, for using a biometric system to determine a material property of a structure of the eye, laser pulses in a laser shot pattern having different powers. A therapeutic laser, and laser delivery system having the capability to vary the power of the laser beam.