6540-- 541-26-3-2611-0455 - PowerRef 3 System Hardware/Software

response to this RFI that is marked as proprietary will be handled accordingly. IAW FAR 10.002(b)(2), FAR 12.101, FAR 12.103 & FAR 12.202(a), responses to this notice are not offers and cannot be accepted by the Government to form a binding contract. Responders are solely responsible for all expenses associated with responding to this RFI. This is NOT a solicitation announcement. This is a sources sought/RFI only. The purpose of this sources sought/RFI is to gain knowledge of potential qualified Small Businesses under NAICS 339112, (Surgical and Medical Instrument Manufacturing industry), but does not exclude others from responding. Responses to this source sought will be used by the Government to make appropriate acquisition decisions. After review of the responses to this source sought, a solicitation announcement may be published. Responses to this source sought synopsis are not considered adequate responses for a solicitation announcement. SOURCES SOUGHT DESCRIPTION The Department of Veterans Affairs, Network Contracting Office 10, Louis Stokes Cleveland VA Medical Center, is seeking sources that can provide a Accommodation Meter plusoptiX R09 (PowerRef 3) and accessories for Surgical Department Mechanical Room that meets the following: Product/Items ITEM NO. DESCRIPTION QUANTIYT UNIT OR STOCK NO. Request purchase only of Accommodation Meter plusoptiX R09 (PowerRef 3) Accommodation Meter plusoptiX R09 (PowerRef 3) incl. Medical Power Adaptor 1 EA 2. Software Licence RP Dynamic measurements of accommodation in sphere, convergence and pupil size changes in scotopic, mesopic and photopic conditions 1 EA 3. Complete measurement set-up kit (includes former MIRROR, SLIDE and REST) 1 EA 4. Shipping and Handling 1 EA Specifications & Salient Characteristics Technical Specifications Refraction (vertical meridian): Binocular and monocular measurement Spherical range: +5.00 D to 7.00 D, in increments of 0.01 D Pupil size: Range: 4.0 8.0 mm, measured in 0.1 mm steps, ±10% accuracy Pupil distance (interpupillary distance): Measured in 1.0 mm steps, ±10% accuracy Sampling rate: 50 Hz (one measurement every 20 ms) Measuring distance: Standard working distance of 1 m (± 5 cm) Measurement principle: Binocular, dynamic photoretinoscopy Interfaces & Power Requirements Interfaces: 4 × USB ports 1 × VGA output (supports 1024 × 768 resolution) Power supply: AC 100 240 V, 50 60 Hz, 2.5 A (excluding monitor) Environmental Conditions Operating temperature: 10 35 °C (50 92 °F) Storage temperature: 0 50 °C (32 122 °F) Relative humidity (non-condensing): Operating: 20 80% Storage: 10 85% Data Output & Logging Measurements are continuously recorded into a CSV logfile, capturing: Timestamp (every 20 ms) LED brightness (percentage) Pupil detection status (found/not found) Pupil size (width & height in mm) Pupil brightness (digital units 0 255) Purkinje reflex size & position (pixels: X & Y) Gaze angles (horizontal & vertical in degrees) Spherical refraction per eye, including mean & standard deviation over last 10 frames Interpupillary distance in mm Camera horizontal angle Salient Functional Characteristics Binocular dynamic measurement: Tracks continuous changes in accommodation (sphere), convergence, and pupil size for both eyes 50 Hz real-time sampling: High temporal resolution enables precise tracking of fast dynamics Open-field fixation: Uses a hot mirror to allow naturalistic visual targets at any distance Non-contact operation: Measurements gathered without touching the subject Research-grade device: Designed specifically for scientific applications investigating accommodation response times, IOL performance, convergence accommodation relationships, and neuro-ophthalmologic metrics Integration & Output Data can be streamed via USB or recorded to a VGA-connected monitor Outputs are ideal for integration into custom research setups and signal logging systems Salient Characteristics Plusoptix PowerRef 3 Accommodation Measurement System The PowerRef 3 system must meet the following minimum salient characteristics to satisfy clinical research and operational requirements for binocular, real time accommodation and convergence measurement: 1. Measurement Capability Must perform simultaneous binocular measurement of: Refractive state (sphere, vertical meridian) Convergence/vergence Pupil size (both eyes) Must provide continuous, real time data acquisition suitable for dynamic accommodative and vergence analysis. 2. Sampling and Data Output Must provide a minimum sampling rate of 50 Hz (20 ms intervals) to capture rapid accommodation fluctuations. Must support continuous data streaming and export to external computers and research software. Must allow real time or recorded output in spreadsheet compatible formats. 3. Optical and System Design Must use infrared photorefraction technology. Must include an open field optical design, enabling natural fixation on targets at varying distances without the constraints of an enclosed optical path. Must incorporate a hot mirror target presentation system permitting both stationary and moving fixation stimuli at adjustable distances. 4. Calibration and Reliability Must be engineered for long term calibration stability, requiring no routine recalibration under normal use. Must include durable optics and electronics suited for repeated daily research use. 5. Fixation Target Flexibility Must support user selectable fixation targets, including moving or adjustable distance stimuli for controlled accommodation and vergence testing. 6. Integration and Compatibility Must be compatible with standard Windows based data acquisition systems, research platforms, or laboratory PCs. Must allow USB or networked connection for external data handling. 7. System Configuration Must include all necessary hardware, software, cables, and accessories required for full operational use upon installation. Background: The VA-ORD-funded study Home-based Treatment of Binocular Eye Dysfunction in Veterans with Traumatic Brain Injury (Mark Walker, M.D., principal investigator) will investigate physiological mechanisms underlying near vision impairment in Veterans and will conduct a pilot study to explore the feasibility and potential efficacy of virtual-reality for customized home therapy of convergence insufficiency. This study requires robust measures of ocular accommodation, the change in the shape of the eye s lens to focus on near images. For that purpose, we require a device that can measure directly changes in lens curvature and that can do this dynamically at a high enough sample rate to measure not only the amount but also the rate of accommodation. The device must also have integrated eye tracking for simultaneous measurement of ocular vergence. The PlusOptix PowerRef3 is the only currently available device that measures accommodation directly and dynamically, is portable, and includes eye tracking to measure simultaneous convergence. Scope: Acquisition� of an automated� retinoscopy-based accommodation and ocular vergence measurement device, its� control� software, and� associated� measurement apparatus.� � � The information identified above is intended to be descriptive, not restrictive and to indicate the quality of the supplies/services that will be satisfactory. It is the responsibility of the interested source to demonstrate to the government that the interested p