Microperimeter MP-3S

MP-3S Microperimeter: Advanced Visual Sensibility Analysis, 3D Tracking, and Scotopic Evaluation for Precise Eye Care

The MP-3S microperimeter is an advanced device designed for the precise analysis of visual sensibility and fixation. It combines a 3D tracking system for the eye with a non-mydriatic fundus camera, making it ideal for microperimetry examinations aimed at evaluating the sensitivity of retinal photoreceptor cells, including cones and rods, in various lighting conditions—photopic, mesopic, and scotopic. The device offers a wide range of light intensities, ranging from 0 to 34 dB in photopic/mesopic and from 0 to 24 dB in scotopic, allowing for the detection of the lowest sensibilities. Additionally, the maximum luminance of stimuli at 10,000 abs enhances sensitivity detection.

The MP-3S employs a real-time 3D tracking system to precisely position light stimuli on the retina, minimizing patient fatigue due to its speed. During the examination, the stability of fixation is analyzed to complement the diagnosis and monitor the progress of patient rehabilitation. The standalone examination takes 40 seconds, and the results are presented either on 2° and 4° circles or in BCEA (Bivariate Contour Ellipse Area).

The device automates patient follow-up and rehabilitation by tracking and aligning with the patient's eye (anterior and posterior segments) based on fundus markings. This technology facilitates the quantification of changes in sensitivity by comparing similar test zones during follow-up, with the second examination automatically conducted under the same conditions as the first.

Active rehabilitation, employing the feedback function, is seamlessly executed, particularly beneficial for low-vision patients with very low visual acuity. Sound guidance (beeps) and additional visual stimulation (flickering) optimize the rehabilitation process, reducing session duration to 10 minutes instead of the typical 30-40 minutes.

The MP-3S is specifically tailored for scotopic analysis in dark conditions. Its dark shell, special-brightness screen, and background luminance as low as 0.003 abs make it conducive to analyzing rods, which are often affected earlier in certain retinal diseases such as AMD or certain forms of retinitis pigmentosa.

For more in-depth analysis, the NAVIS-EX software interface offers an intuitive display of results and allows users to fully customize the examination, including a 100%-adjustable stimuli grid. The software enables easy superimposition of microperimetry results onto patient OCT exams, facilitating a comprehensive multimodal analysis. A similar Humphrey gray scale is also available for comparing results with classical visual field devices.

Luminance threshold: 0 to 24 dB

Working distance: 45.7 mm

Power supply: 100 – 240 V AC ± 10%, 50/60 Hz

Dimensions: 334 (L) x 562 (W) x 560 (H) mm

Weight: 29 kg