MP-3


Microperimeter

The MP-3 Microperimeter measures local retinal sensitivity for functional assessment of the retina. The results can be displayed over a color fundus image, correlating retinal anatomy to retinal function.

Key Features:

  • Wide Measurement Range
  • Auto Tracking and Auto Alignment
  • Feedback exam for visual rehabilitation
  • Fixation Test
  • High Resolution Non-mydriatic Fundus Camera
  • Gray scale
  • Easy Image Acquisition
  • Scotopic microperimetry (factory-installed option)

Key Features of the NIDEK MP-3

Wide Measurement Range

wide-measurmentThe MP-3 has a wider range of stimulus intensity, from 0 to 34 dB, compared to the MP-1. The MP-3 measures perimetric threshold values, even for normal eyes. A maximum stimulus luminance of 10,000 asb* allows evaluation of low-sensitivity.

*Complies with the ISO 12866 requirements.

Fixation Analysis

The 12-megapixel fundus camera in the MP-3 acquires high resolution images of retinal pathology and allows easy image acquisition.

Feedback exam for visual rehabilitation

The visual rehabilitation mode trains low-vision patients who have lost foveal

fixation to relocate their preferred retinal locus (PRL) to a different region, called the trained retinal locus (TRL). The TRL is predetermined by a physician, and fixation rehabilitation allows the patient better functional vision (i.e. reading speed) due to increased fixation stability and visual outcomes.

Active flickering pattern stimulation and cheery music create an effective and pleasant training experience for the patient.

Image courtesy of the National Centre of Services and Research for the Prevention of Blindness and Rehabilitation of Visually Impaired – IAPB Italia Onlus, Rome – Italy

Gray Scale

Visual sensitivity maps can be displayed in gray scale, similar to the conventional visual field reports. This display allows for an intuitive assessment of retinal sensitivity.

Scotopic microperimetry (factory-installed option)


MP-3 type S

Scotopic microperimetry is used to assess the changes in rod sensitivity of degenerative retinal diseases including age-related macular degeneration and some forms of retinitis pigmentosa. The type S provides scotopic microperimetry in addition to the standard functions of the MP-3.

There have been significant advances in the assessment of retinal morphology due to the introduction of optical coherence tomography (OCT) into clinical practice, however, functional evaluation of retinal pathology is further advanced with the use of the microperimetry. The MP-3 measures local retinal sensitivity for functional assessment of the retina. The results can be displayed over a color fundus image, correlating retinal anatomy to retinal function.

Precise Follow-up Examination

Auto tracking and auto alignment functions provide more accurate measurements increasing patient and operator comfort and efficiency. These functions allow easy follow-up and reduce variations between examiners, resulting in well-aligned follow up exams.

Fixation Test

fixationtestThe MP-3 can measure fixation and determine the preferred retinal locus, simply by having the patient fixate on a target. Any change in fixation can be compared pre- and post-treatment because the patient’s eye is constantly tracked during microperimetry. This test allows evaluation of fixation in patients with central visual field defects and determines whether fixation improved after treatment.

Region-specific Test Evaluation

After completion of measurements, results can be evaluated in a specific region of interest to allow easier comparison with other pathology images. By specifying the region of interest, the average results in the region are displayed.

Follow-up Test

followupA follow-up test can be performed on the same area using the same parameters as a previous test. This feature allows evaluation of disease progression or assessment of pre- and post-treatment outcomes. Any differences in two microperimetry images are displayed for quick, intuitive interpretation.

Fixation Assessment

The MP-3 indicates the percentage of fixation points within 2° and 4° in diameter help confirm fixation stability.

MP-3 Specifications

Microperimetry
Visual Field40°
Maximum stimulus luminance10,000 asb (complies with the ISO 12866 requirements)
Background luminance31.4 asb / 4 asb (complies with the ISO 12866 requirements)
Stimulus sizeGoldman I / II / III / IV / V compatible
Threshold strategy4-2 / 4-2-1
Fixation targetShape: single-cross, circle, four-crosses

Color: select from white / yellow / red / blue
Fundus Camera
TypeNon-mydriatic fundus camera, color
Angle of view45° ±5% (The refraction of the eye is 0 D)
Minimum pupil diameterø4 mm
CameraBuilt-in 12-megapixel CCD camera
Auto trackingX-Y-Z directions
Auto shotAvailable
Working distance45.7 mm
Display10.4-inch color LCD touch screen
Diopter correction range-25 to +15 D
Fundus auto focus range-12 to +15 D
Power supplyAC 100 to 240 V

50 / 60 Hz
Power consumption160 VA
Dimension / Mass334 (W) x 562 (D) x 560 (H) mm / 36 kg

13.1 (W) x 22.1 (D) x 22.0 (H) " / 79 lbs.
Optional accessoriesMotorized optical table

Part # 16-0097