Single-Activation Excimer Laser Presbyopia Correction
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Solution Overview
Problem
Current presby-LASIK procedures require two separate activations of the excimer laser for each eye, leading to downtime and potential misalignment, affecting the outcome due to changes in laser calibration and pupil size variations.
Innovation Solution
A single activation system that uses a defined three-dimensional presby ablation profile to create a prolate-shaped cornea with negative asphericity, suitable for treating presbyopia without requiring pre-surgery calibration, using a universal ablation profile that can correct myopia, hyperopia, and astigmatism, and is applicable to most emmetropic presbyope patients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If two separate laser activations are used for presbyopia treatment, then the cornea can be reshaped to correct vision, but the procedure time increases and alignment accuracy decreases due to laser downtime and recalibration
Solution Approach 1:
The patent combines two separate laser activation procedures into a single continuous activation. The excimer laser remains active throughout the entire presbyopia treatment process, eliminating the downtime and recalibration issues associated with deactivating and reactivating the laser between treatment steps. This merging of operations maintains alignment accuracy while reducing total procedure time.
2Reliability
If two separate laser activations are used for presbyopia treatment, then the ablation can be performed in stages, but the laser calibration may change between activations affecting treatment consistency
Solution Approach 1:
The patent implements continuous laser action by keeping the excimer laser activated throughout the entire presbyopia treatment procedure. This eliminates interruptions and ensures that the laser calibration remains consistent from the beginning to the end of the treatment, improving reliability and treatment consistency while eliminating downtime between activation stages.
3Adaptability or versatility
If a universal ablation profile is used for presbyopia treatment, then the system can treat multiple conditions without patient-specific adjustments, but the device complexity increases
Solution Approach 1:
The patent implements a universal ablation profile that can treat various presbyopic conditions without requiring patient-specific customization. The single activated excimer laser system is configured to deliver a standardized treatment protocol that addresses different presbyopia cases, thereby increasing treatment versatility while avoiding the complexity of multiple customized treatment programs.
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
This approach reduces downtime, improves reading vision, and increases depth of field without compromising distance acuity, making it suitable for a wide range of presbyopic corrections with a single-card system that can treat multiple conditions without patient-specific adjustments.
Implementation Method 1
The systems can direct a laser to ablate the cornea with a defined three-dimensional presby ablation profile
Data Source
AI summary
Methods and systems for correcting presbyopia using a surgical excimer laser include activating the laser once and transmitting a pre-defined three dimensional ablation profile to treat presbyopia based on the single activating step.