(115 days)
The LipiView® Ocular Surface Interferometer is an ophthalmic imaging device that is intended for use by a physician in adult patients to capture, archive, manipulate and store digital images of specular (interferometric) observations of the tear film, which can be visually monitored and photographically documented.
The LipiView® Ocular Surface Interferometer is a bench-top imaging device containing a computer system and electronics, chin rest and forehead rest, camera and zoom lens, illuminator and a touch screen display. The LipiView® Interferometer operates on the principle of white light interferometry and provides an interferometry color assessment of the tear film by specular reflection. The computer system captures a video image file that is recorded over time since the interference pattern changes as the tear film is distributed across the cornea during blinking. The video image of the ocular surface may be viewed on the computer screen display and in a printed report.
The provided 510(k) summary for the LipiView® Ocular Surface Interferometer (K091935) does not contain detailed information about specific acceptance criteria or a dedicated study proving the device meets those criteria in terms of clinical performance or diagnostic accuracy. Instead, the submission focuses on demonstrating substantial equivalence to predicate devices through technological comparisons and compliance with relevant safety and manufacturing standards.
Here's an analysis based on the provided text, highlighting the absence of information where applicable:
1. Table of Acceptance Criteria and Reported Device Performance
The 510(k) summary does not include a table of specific acceptance criteria related to a clinical performance study (e.g., sensitivity, specificity, accuracy for a particular clinical task) nor does it report such performance metrics. The "performance testing" mentioned refers to compliance with safety and manufacturing standards.
| Acceptance Criteria | Reported Device Performance |
|---|---|
| Not specified in the provided document for clinical performance or diagnostic accuracy. | Not specified in the provided document for clinical performance or diagnostic accuracy. |
| Electrical safety & electromagnetic compatibility standards | Conforms to requirements |
| Optical radiation safety standards | Conforms to requirements, exposure and level of illumination complies with ISO 15004-2 Group 1 instrument for safety |
| Slit lamp biomicroscope requirements | Conforms to requirements |
| Material flammability (materials near light source) | Complies with UL 94V-1 |
| Software validation | Developed and tested in compliance with FDA Guidance documents for software validation in medical devices |
| Risk management | Designed and will be manufactured in compliance with voluntary consensus standards for risk management |
| Quality management systems | Designed and will be manufactured in compliance with voluntary consensus standards for quality management systems |
2. Sample Size Used for the Test Set and Data Provenance
No specific test set or clinical study data is provided in the document from which to derive a sample size or data provenance. The submission focuses on device design and comparison to predicate devices, not a clinical performance evaluation.
3. Number of Experts Used to Establish Ground Truth and Qualifications
Not applicable. Since no clinical performance study or test set data is provided, there is no mention of experts establishing ground truth for such a study.
4. Adjudication Method
Not applicable. Since no clinical performance study or test set data is provided, there is no mention of an adjudication method.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No MRMC comparative effectiveness study is mentioned in the document. The submission focuses on substantial equivalence based on technological characteristics and safety standards, rather than a clinical trial comparing device performance with and without AI assistance or against human readers.
6. Standalone Performance Study (Algorithm Only)
The device described is an "Ocular Surface Interferometer," an imaging device. While it contains computer software, the provided summary does not detail any standalone algorithmic performance (e.g., automated disease detection, quantification of a specific biological marker) that would necessitate a standalone performance study in the way modern AI/ML devices often do. Its intended use is to capture, archive, manipulate, and store digital images for visual monitoring and documentation by a physician.
7. Type of Ground Truth Used
Not applicable. As no clinical performance study is detailed, no specific ground truth (expert consensus, pathology, outcomes data) is discussed for such a study.
8. Sample Size for the Training Set
Not applicable. The document does not describe the development of an AI/ML algorithm that would require a training set in the conventional sense. The "software was developed and tested in compliance with FDA Guidance documents for software validation in medical devices," which refers to general software engineering principles, not necessarily AI model training.
9. How the Ground Truth for the Training Set Was Established
Not applicable. As no AI/ML algorithm requiring a training set is described, no ground truth establishment method for a training set is mentioned.
Conclusion based on the provided document:
The 510(k) submission for the LipiView® Ocular Surface Interferometer (K091935) relied primarily on demonstrating substantial equivalence to already cleared predicate devices by comparing their intended use, technological characteristics, and compliance with applicable safety and manufacturing standards. It does not present detailed clinical acceptance criteria or a study focused on clinical performance metrics like diagnostic accuracy, sensitivity, or specificity for a particular clinical condition. The "performance testing" cited pertains to engineering and safety standards, not clinical effectiveness.
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510(k) SUMMARY
| PREPARATION DATE: | September 30, 2009 |
|---|---|
| APPLICANT: | TearScience, Inc.1101G Aviation ParkwayMorrisville, NC 27560Tel: (919) 467-4007Fax: (919) 467-3300 |
| OCT 23 2009 | |
| CONTACT PERSON: | Christy Stevens, ODVice President, Clinical and Regulatory Affairs |
| DEVICE TRADE NAME: | LipiView® Ocular Surface Interferometer |
| COMMON NAME: | Ophthalmic Imaging Device |
| CLASSIFICATION NAMES: | Ophthalmic Camera (21 CFR 886.1120) andAC-powered Slit Lamp Biomicroscope (21 CFR 886.1850) |
| DEVICE CLASSIFICATION: | Class II |
| PRODUCT CODES: | HKI and HJO |
| PREDICATE DEVICES: | 1. OphthaVision Imaging System, MRP Group, Inc.(K980295; cleared May 19, 1998;Product Code HKI; 21 CFR 886.1120; Class II) |
| 2. Tearscope-Plus, Keeler Instruments, Inc.(K973064; cleared April 7, 1998;) |
DEVICE DESCRIPTION:
The LipiView® Ocular Surface Interferometer is a bench-top imaging device containing a computer system and electronics, chin rest and forehead rest, camera and zoom lens, illuminator and a touch screen display. The LipiView® Interferometer operates on the principle of white light interferometry and provides an interferometry color assessment of the tear film by specular reflection. The computer system captures a video image file that is recorded over time since the interference pattern changes as the tear film is distributed across the cornea during blinking. The video image of the ocular surface may be viewed on the computer screen display and in a printed report.
INTENDED USE
The LipiView® Ocular Surface Interferometer is an ophthalmic imaging device that is intended for use by a physician in adult patients to capture, archive, manipulate and store digital images of specular (interferometric) observations of the tear film, which can be visually monitored and photographically documented.
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SUBSTANTIAL EQUIVALENCE TO THE PREDICATE DEVICES
The intended use and technologic characteristics of the LiviView Interferometer are substantially equivalent to the OphthaVision Imaging System (K980295) and Tearscope-Plus (K973064). All three devices are prescription devices for imaging use by a physician during an in-office exam.
The LipiView Interferometer and the OphthaVision Imaging System are intended to capture, archive, and manipulate digital images of the imaging focal plane with the LipiView Interferometer is at the ocular surfacc and tear film, whereas the OphthaVision Imaging System can be used for intraocular imaging. Both devices provide a means to store digital images to allow a physician to monitor and photographically document conditions.
The LipiView® Ocular Surface Interferometer has similar technological characteristics to the OphthaVision Imaging System. Both devices use a digital camera. Microsoft Windows-based software, computer, monitor, graphical user interface, user controls, printer support, image storage drives, and AC power source. Both devices allow the user to select functions to process, analyze, archive and retrieve images. Analogous software features include image enhancement, alignment, comparison, animation, capture/save and print. The two devices store data in a similar Lossless file format,
Furthermore, the LipiView Interferometer and the Tearscope-Plus have the same intended use to observe the tear film by specular reflection. Both devices allow the physician to observe tear film. The LipiView® Interferometer has similar technological characteristics to the Tearscope-Plus. Both devices use a diffuser and low-level white light to illuminate the eye on an angle and view real-time tear film dynamics. Both devices show the interference patterns for evaluation of the colors observed in the tear film. The LipiView Interferometer and Tearscope-Plus are required to meet optical radiation safety standards.
The LipiView® Interferometer, OphthaVision Imaging System and Tearscope-Plus are all AC-powered devices that are required to meet electrical safety and electromagnetic compatibility standards. All three devices do not contact the patient's eye.
The LipiView Interferometer includes a chin rest support system to position the patient's head during imaging, whereas the OphthaVision Imaging System and the f earscope-Plus are used with a slit lamp biomicroscope that provides a chin rest support to position the patient's head. The chin rest support materials for the LipiView Interferometer are widely used in ophthalmic slit lamp biomicroscopy products and are known for biocompatibility. Therefore, this difference does not raise new questions of safety and effectiveness. In addition, the LipiView® Ocular Surface Interferometer conforms to disinfection of patient contact surfaces for slit lamp biomicroscopes.
Minor differences in technology between the predicate devices and the LipiView Interferometer do not raise new questions of safety and effectiveness and are supported by performance testing to applicable standards and software verification and validation. Table 5-1 compares the LipiView® Interferometer to the predicate devices.
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PERFORMANCE TESTING:
The LipiView® Ocular Surface Interferometer conforms to the requirements under the applicable standards for slit lamp biomicroscopes; optical radiation safety; electrical safety; and material flammability. In addition, the LipiView® Interferometer is designed and will be manufactured in compliance with voluntary consensus standards for risk management and quality management systems. The LipiVicw Interferometer software was developed and tested in compliance with FDA Guidance documents for software validation in medical devices.
CONCLUSIONS:
The LipiView® Ocular Surface Interferometer has comparable intended use and technologic characteristics to the predicate devices. Minor technological differences between the LipiView® Interferometer and the predicate devices do not raise new questions of safety and effectiveness and are supported by performance testing, TearScience has demonstrated through its evaluation of the LipiView Ocular Surface Interferometer that the device is substantially equivalent to the predicate devices.
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| Comparison Feature | LipiView® Ocular Surface Interferometer (K980295) | OphthaVision Imaging System (K980295) | Tearscope-Plus (K973064) |
|---|---|---|---|
| Indications For Use | The LipiView® Ocular Surface Interferometer is an ophthalmic imaging device that is intended for use by a physician in adult patients to capture, archive, manipulate and store digital images of specular (interferometric) observations of the tear film, which can be visually monitored and photographically documented. | The OphthaVision Imaging System is intended for use to capture, archive, and manipulate digital images of the eye obtained through use of an ophthalmic camera. | Specular observation of the tear film |
| Prescription/OTC Device | Prescription diagnostic | Prescription diagnostic | Prescription diagnostic |
| Method of OperationOphthalmic Imaging | Ophthalmic camera with digital imaging systemGraphical User InterfaceTouchscreen user controlMicrosoft Windows-based software | Ophthalmic camera with digital imaging systemGraphical User InterfaceMouse, keyboard and joystick user controlsMicrosoft Windows-based software | No software imaging capability |
| Method of OperationTear Film Observation | Real-time tear film dynamics based on interference pattern from specular reflectionProvides isolated tear film view and interferometric color analysis | None | Real-time tear film dynamics based on interference pattern from specular reflection |
| IlluminationSource | Angled Class I white LEDs with diffuser | No direct illumination sourceUsed with a slit lamp for illumination | Angled cold cathode light with diffuserMay be used with a slit lamp, which provides additional illumination |
| Exposure Parameters | Illuminates lower half of eyeExposure and level of illumination complies with ISO 15004-2 Group 1 instrument for safety | Not applicable | Illuminates full eye including pupilExposure level not specifiedRequired to comply with safety standard |
| Brightness Control | No brightness control adjustment by user | Not applicable | High and low level brightness control |
| Material Flammability | Materials near light source comply with UL 94V-1 | Not applicable | Not specified |
| Maximum Temperature ofHeld or Accessible Parts | Ambient temperature of parts of device held by operator or accessible to patient | Not applicable | Ambient temperature of parts of device held by operator or accessible to patient |
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DEPARTMENT OF HEALTH & HUMAN SERVICES
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Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002
Christy Stevens, OD VP, Clinical & Regulatory Affairs Tearscience, Inc. 1101 G Aviation Parkway Morrisville, NC 27560
Re: K091935
Trade/Device Name: LipiView Ocular Surface Interferometer Regulation Number: 21 CFR 886.1120 Regulation Name: Ophthalmic Camera Regulatory Class: II Product Code: HKI, HJO Dated: October 5, 2009 Received: October 6, 2009
Dear Dr. Stevens;
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration. Iisting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
OCT 2:3 2009
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH0ffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Rulthim, m for
Melvin R. Fuhrman, M.D.
Malvina B. Eydelman, M Director Division of Ophthalmic, Neurological, and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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INDICATIONS FOR USE
510(k) Number:
Device Name: LipiView® Ocular Surface Interferometer
Indications for Use:
The LipiView® Ocular Surface Interferometer is an ophthalmic imaging device that is intended for use by a physician in adult patients to capture, archive, manipulate and store digital images of specular (interferometric) observations of the tear film, which can be visually monitored and photographically documented.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Rostase
Page of
(Division Sign-Off) (Division Sign-DIT)
Division of Ophthalmic, Neurological and Ear,
Division of Ophthalmic, Neurological and Ear, Division.
Nose and Throat Devices
$\qquad k07,935$
510(k) Number
§ 886.1120 Ophthalmic camera.
(a)
Identification. An ophthalmic camera is an AC-powered device intended to take photographs of the eye and the surrounding area.(b)
Classification. Class II (special controls). The device, when it is a photorefractor or a general-use ophthalmic camera, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 886.9.