Optical Waveguide Gland Treatment for Dry Eye
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Solution Overview
Problem
Current treatments for dry eye disease, particularly Meibomian gland dysfunction, are often invasive, costly, and ineffective, as they require expert ophthalmologists, anesthesia, and multiple procedures, and existing methods like warm compresses and eyelid massages are not clinically effective for severe cases.
Innovation Solution
A light-based gland treatment device using an elastomeric optical waveguide to direct infrared radiation to the Meibomian glands, combined with a mechanical oscillator assembly for massaging the eyelid tissue to remove clogged oils, which is designed to be non-invasive and user-friendly, reducing the need for expert intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional invasive procedures (heating from inside, air bladder massage, forceps expression) are used to treat severe Meibomian gland dysfunction, then the glands can be effectively opened and oils expressed, but the procedures become highly invasive, costly, and require expert ophthalmologists and anesthesia
Solution Approach 1:
The patent replaces invasive mechanical procedures (air bladders, forceps, internal heating catheters) with a non-invasive optical system. Infrared light is transmitted through the eyelid tissue via optical fibers to heat the Meibomian glands from the outside, eliminating the need for surgical insertion of heating devices or mechanical massage tools while achieving effective oil softening and expression.
Solution Approach 2:
The patent introduces an intermediary optical waveguide system that transmits infrared energy through the eyelid tissue to reach the Meibomian glands. This intermediary allows energy delivery without direct contact or insertion into the gland, bridging the gap between external application and internal treatment while maintaining non-invasiveness.
2Reliability
If multiple invasive procedures are performed annually to maintain gland function, then treatment effectiveness is achieved, but the cost and frequency of treatments increase significantly
Solution Approach 1:
The patent enables patients to perform gland treatment at home using a portable device that delivers infrared light through the eyelid. This self-service capability eliminates the need for repeated visits to specialized clinics or hospitals, allowing patients to maintain gland function independently without requiring expert ophthalmologist intervention for each treatment session.
Solution Approach 2:
The patent implements periodic treatment protocols where patients apply infrared light therapy at home on a scheduled basis (e.g., daily or several times per week). This periodic self-administered treatment maintains gland function more effectively than annual invasive procedures while giving patients control over their treatment timing and frequency.
3Loss of substance
If forceps with intermediate pressure are used to express glands during heating treatment, then oils can be effectively removed, but the procedure becomes more invasive and uncomfortable for the patient
Solution Approach 1:
The patent replaces the mechanical forceps expression method with a combination of infrared light heating and gentle external eyelid massage. The infrared light softens the clogged oils by heating the glands from outside the eyelid, and the softened oils can then be expressed through gentle massage or natural blinking, eliminating the need for forceps and reducing patient discomfort while maintaining effective oil removal.
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
The device effectively heats the Meibomian glands to soften clogs, allowing for non-invasive expression of oils, improving tear film stability and reducing dry eye symptoms with fewer treatments and lower costs, while being safer and more comfortable for patients.
Implementation Method 1
a light-based gland treatment device that directs electromagnetic radiation (e.g., infrared light) to the gland through an elastomeric optical waveguide
Implementation Method 2
An elastomeric waveguide is coupled to, or positioned in front of, the light element and is sized, shaped, and structurally arranged to guide or direct the light through a distal surface of the waveguide
Implementation Method 3
a mechanical oscillator assembly that periodically compresses and massages the tissue around the gland to remove clogged oils from the gland
Data Source
AI summary
Systems, devices and methods that facilitate safe heating of eyelids to treat dry eye are disclosed. According to one embodiment, an apparatus for optical heating of an eyelid of a patient includes: a housing configured to be grasped by a human hand; at least one light emitter coupled to the housing and configured to emit beams of infrared light; a waveguide component coupled to the at least one light emitter and configured to direct the beams of light toward the eyelid; and a scleral cover configured to couple to the housing, the scleral cover comprising: a curved protective portion configured to reflect infrared light emanating from the at least one light emitter.