Search Results

The Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens is indicated for the correction of refractive ametropia (myopia) in aphakic and not-aphakic persons with non-diseased eyes. The lenses may be worn by person who exhibit astigmatism of 2.00 diopters or less that does not interfere with visual acuity.

The Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens helps protect against transmission of harmful UV radiation to the cornea and into the eye.

The eye care professionals may prescribe the lens for single use daily disposable or daily wear in a Frequent Replacement Program. As prescribed for planned replacement, the lens should be disinfected using a chemical or hydrogen peroxide disinfecting systems.

The Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens is manufactured by using cast molding method. The lens material, Methafilcon A, is a random copolymer of 2-hydroxyethyl methacrylate (HEMA) and Methacrylic acid (MAA) crosslinked with ethylene glycol dimethacrylate (EGDMA). A UV absorbing monomer is used to block UV radiation. The average transmittance characteristics are less than 5% in the UVB range of 280 to 315 nm and less than 50% in the UVA range of 316 to 380 nm. The lenses are tinted blue for visibility purposes with the color additives, C.I. Reactive Blue No.4.

The lenses are available as aspheric lenses. Each finished lens is supplied in a plastic blister container with a sterile isotonic phosphate buffered saline solution containing sodium hyaluronate and trehalose wetting agents.

The provided text is related to the Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens. It serves as a 510(k) summary for premarket notification to the FDA. The document focuses on demonstrating substantial equivalence to a predicate device (K133735) rather than acting as a traditional clinical study report for a new medical device where complex acceptance criteria related to diagnostic performance might be required.

Therefore, the requested information regarding acceptance criteria and studies (e.g., MRMC, expert ground truth, training set details) that are typical for AI/ML-driven devices with diagnostic or prognostic capabilities is not applicable to this document. This document describes a contact lens and focuses on bench testing and material safety.

However, I can extract the "acceptance criteria" through the lens of substantial equivalence and the reported device performance related to the physical and chemical properties of the contact lens, as well as the non-clinical tests performed to demonstrate its safety and effectiveness.

Here's an interpretation of the requested information based on the provided text for the Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens:

1. Table of Acceptance Criteria and Reported Device Performance

For this medical device (contact lens), the "acceptance criteria" are implied by demonstrating substantial equivalence to the predicate device (K133735) across various physical, chemical, and safety characteristics. The reported device performance is compared directly to the predicate device.

Note: For properties like "Powers", "Base Curve", and "Diameter", the subject device offers a broader range, which is typically acceptable if the safety and performance for the new range are demonstrated, often through bridging data or established manufacturing controls, and the material and fundamental design remain equivalent.
The packaging solution for the subject device is more specific but still within the expected range of saline solutions for contact lenses.

2. Sample size used for the test set and the data provenance
The document states: "A series of preclinical testing were performed to demonstrate the safety and effectiveness of the Eye Secret 55 UV Aspheric (Methafilcon A) Soft (hydrophilic) Contact Lens." However, it does not specify the exact sample sizes for each non-clinical test (e.g., number of lenses, animals tested).

• Data Provenance: The tests were conducted by Yung Sheng Optical Co., Ltd. (Taiwan). The nature of the tests (e.g., in-vitro, animal studies) means they are primarily lab-based and not derived from human patient data in the clinical trial sense. The status is "preclinical testing".

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
This type of information is not applicable to this premarket notification for a contact lens. The "ground truth" for contact lens performance is established through standardized non-clinical (bench) testing, material characterization, and established clinical performance of the material. Expert consensus, in the diagnostic sense, is not typically used here. The assessment is based on physical and chemical measurements against industry standards and comparisons to a legally marketed predicate device.

4. Adjudication method (e.g., 2+1, 3+1, none) for the test set
Not applicable. Adjudication methods like 2+1 or 3+1 are used in clinical trials involving human readers assessing medical imaging or other diagnostic outputs to establish ground truth or resolve discrepancies. This document describes non-clinical testing of a physical device.

5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. MRMC studies are specific to evaluating diagnostic systems, particularly those involving AI assistance with human interpretation. This document pertains to a contact lens and its physical/chemical properties.

6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done
Not applicable. This question relates to AI/ML software performance. The device is a contact lens.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
The "ground truth" for the non-clinical tests is established by:

• Standardized Test Methods: Adherence to established standards (e.g., ISO 10993-5 for cytotoxicity, FDA Premarket Notification 510(k) Guidance Document for Daily Wear Contact Lenses, 1994).
• Material Specifications: Chemical and physical properties of the Methafilcon A material and the finished lens parameters (e.g., water content, light transmittance, refractive index).
• Predicate Device Equivalence: The primary "ground truth" or benchmark is the performance and safety profile of the legally marketed predicate device (K133735), which has already been deemed safe and effective.

8. The sample size for the training set
Not applicable. There is no "training set" in the context of this device. Training sets are relevant for machine learning algorithms.

9. How the ground truth for the training set was established
Not applicable. There is no "training set" for this device.

Ask a specific question about this device