Telescopic IOL Optics for Pre-Implant Glare and Halo Evaluation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current IOL technologies lack effective methods to simulate and predict the photic effects, such as dysphotopsia and visual symptoms, before implantation, which are crucial for patient evaluation and selection.
Innovation Solution
An apparatus and method that simulates optical effects of IOLs using a combination of optical components to project an image into a patient's pupil, replicating the effects of the IOL if implanted, including scattering light and glare simulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pre-implantation evaluation methods are developed, then patient selection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent creates an optical copy model of the patient's eye using a camera system that captures images through a simulated eye model. This optical copy allows evaluation of IOL performance without requiring complex in vivo testing equipment, thereby improving measurement precision while controlling device complexity through the use of a simplified but representative eye model.
Solution Approach 2:
The patent introduces an intermediary eye model that simulates the patient's eye optics. This model acts as a mediator between the IOL being tested and the evaluation system, allowing accurate assessment of photic effects and visual quality without requiring direct measurement from the patient's eye, thus improving precision while maintaining manageable system complexity.
2Measurement precision
If comprehensive optical testing is performed, then evaluation accuracy is improved, but testing time increases
Solution Approach 1:
The patent performs preliminary optical characterisation of the patient's eye using the simulated eye model before actual IOL implantation. By pre-evaluating optical properties such as photic effects, glare, and halos in advance using the eye model, the system provides accurate evaluation results quickly, improving measurement precision while reducing the time required for comprehensive testing compared to traditional in vivo methods.
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
Enables pre-implantation evaluation of IOLs, allowing patients and physicians to assess and predict visual outcomes, reducing the risk of undesirable effects like halos and glare.
Implementation Method 1
an arrangement of optical components is positioned to receive light from a target object and transmit the light through an intraocular lens to a receiving optical component, such as a retina or imaging component
Implementation Method 2
the arrangement of optical components simulates the effects of scattering light that would be produced by the intraocular lens if it were actually implanted into the eye
Data Source
AI summary
An apparatus uses optical components arranged as a telescope to simulate the optical effects of intraocular lenses on images viewed in the presence of scattering light and glare sources. By simulating a view of a real image through an intraocular lens and projecting the simulated view into a patient's eye, the patient can view the quality of vision that may result from use of a particular lens as a corrective tool. The intraocular lens is placed within the fields of view of peripheral optical components having prescribed operating parameters that allow for projecting a simulated image through an intraocular lens into a patient's eye before the intraocular lens is implanted. The patient can perceive the results of a corrective lens before that lens is attached to or implanted within the patient's eye.