PIROP – Ophthalmic Scanner (A+B+CCT)


PIROP – state-of-the-art ophthalmic ultrasonic device for  Biometry , Visualization and Pachymetry of eyeballs   (A-Scan + B-Scan + CCT- Pachymeter) – modified version.

A-SCAN Ocular Lens biometrics
Digital ‘A-scan’  tool for ophthalmology, biometry and lens power calculation of intra-ocular implants.

B-SCAN Eye examination
Modern  ‘B-scan’  tool for ophthalmology,  interior eyeball imaging, retina, optical nerve

CCT- PACHYMETER (P-SCAN) –  Ocular cornea biometrics 
Up-to-date ultrasonic pachymeter  used to measure the thickness of the eye’s cornea (glaucoma screening and refractive surgery),  with a very high sampling frequency –400MHz  (a significant increase in measurement accuracy – ≤ 2 μm). Corneal pachymetry is an important test in the early detection of glaucoma (central corneal thickness CCT), and it help also surgeons by providing graphical surgical plans to eliminate corneal astigmatism.

PIROP user’s interface based on touch screen technology makes operation easy and user-friendly. The touch screen can be also operated not only with fingers, but also using the enclosed stylus to keep it clean.



  • Complete and quick biometry :
    –   eye  axial length  (AXL)
    –   anterior chamber depth (AC)
    –   lens thickness (LENS)
    –   vitreous length (VITR)
  • Measurement of all eye types:
    normal,  cataract,  dense cataract, aphakic,silicone oil vitreous,
    pseudoaphakic  (PMMA, ACRYLATE, SILICONE)
  • IOL six  formulas:
    SRK II, SRK T, Holladay, Hoffer-Q, Binkhorst II, Haggis
  • Post refractive formulas:
    Double-K SRKT,  Latkany / Flat-K SRKT/, Latkany /avg-K SRKT/, Masket
  • IOL power calculation comparison (for different lenses and calculation methods)
  • Contact and immersion methods  (the immersion tube  attached)
  • Probe with central light beam for correct eye positioning
  • Automatic TGC adjustment;GAIN adjustment up to 110dB
  • Memory of 20 scans with measurements for further analysis
  • Calculations of means and standard deviations
  • Automatic control of measurement scatters (with manual correction)
  • Customizable for 10 users,  10 profiles for each.
  • Adjusting  and testing via attached calibrator
  • Probe frequency – 12 MHz
  • Range of scan 45 mm  / 2500 points per line
  • Clinical resolution   0.1 mm
  • Electronic resolution  –/+ 0.01 mm


  • Probe frequency: 12 .. 15 MHz
  • Scanning angle :  55ᵒͦ
  • Range of scan:  20 .. 60 mm
  • Gain/dymamics up to 110dB / 90dB
  • TGC – zone gain adjustment in selected eye
  • 256 Levels Gray Scale
  • Axial clinical resolution:  0.12 mm
  • Lateral clinical resolution :  0.3 mm
  • Display modes : B, B+A, B+B
  • A-mode for selected line CV (in Run and Freeze modes)
  • Dynamic Range Correction
  • Image cache memory  M1..M4  independent for right and left eyes
  • Zoom function (x2) in Run and Freeze modes
  • Digital Gain Correction in  Freeze mode
  • Cineloop function (about 6 second) independent for left/right eyes
  • Distances  measurements with ultrasound velocity correction
  • Area and angle measurements
  • Pointers, comments entered by the user
  • Composite video output for videoprinter


  • Power supply from external  AC/DC power adapter:
    –  input:  100-230V AC 50/60Hz /  max 0.7A
    –  output:   +12V  DC / 2 A
  • Power consumption (12 DC supply) – ca 12 W

Electrical safety standards
Medical device Class IIa complies with MDD 93/42 EEC
– Scanner complies with requirements for Class II devices of EN/IEC 60601-1


  • Dimensions (with built-in printer): 290 x 205 x 85 mm
  • Weight (with built-in printer): 1.5 kg


  • Quick  thickness measurements for all corneal  types
    – the measurement of central corneal thickness (CCT)
    – thickness measurement  at arbitrarily selected points
    – automatic and manual measurements
    – calculation of mean from measurements
    – standard deviation of the measured thickness
    – ability for rejecting inaccurate measurements
  • Very high level of accuracy and repeatability of all measurements:
    – sophisticated algorithms  for the accuracy improvement
    – very high frequency for measuring purpose- 400 MHz
    – high averaging ratio – 512 automatic measurements cycles
  • Intra-ocular pressure (IOP) calculations with  measuring  and/or manual correction
  • Ten IOP correction formulas : Kohlhas/Shah, Argus et al. Whitarce et al, Doughty, Ehlers, Dresden, Stodmeister,  custom-own
  • BIAS percentage deviation of the measured thickness from 60% to 130%
  • TEST function for automatic checking of operation correctness  (without using external phantoms or patterns)
  • Nine defined maps of corneal thickness with the number of points:
    1, 5, 9, 13, 21, 25, 1 MULTI, 5 MULTI, 9 MULTI (central, paracentral, peripheral, parietal, mixed)
  • 20 MHz probe operating frequency
  • Default sound velocity – 1640 m/s ;  range from 1400 to 2000 m/s
  • Measurement  range from 220 μm to 1100 μm
  • Measuring accuracy  ≤ 2 μm
  • Resolution 1 μm


  •  Touch Screen
    – easy, ergonomic and user-friendly operation via displayed menu
    – virtual keyboard for entering patient data, etc.
  • Functional knob (gain control, review results, cine etc.)
  • Color LCD 7” display
  • Internal patient’s databas
  • Ten (10) user profiles
  • Support for  barcode reader
  • Possibility of connecting an external alphanumeric keyboard
  • Recording of images in internal and  USB-Pendrive memory.
  • Internal thermal small printer ( for A-scan and P-scan reports )
  • Composite-video output PAL (for videoprinter or  video monitor )
  • Support of multiple languages
  • Easy firmware upgrade via USB port

PIROP-PC software (optional)

  • a special software  that enables management of  the patient database and measurements (images)  obtained from  PIROP scanner.
  • it can be installed in any external PC computer, tablet etc. operated by Windows.
  • exchange of images and patient data  between a scanner and the  PIROP-PC application is done using an USB memory or via  a direct USB  connection.
  • possibility to print  on any printer the special report of exams
  • additional option – possibility to use the standard DICOM 3.0 to communicate with PACS/RIS systems (Store, Print, Worklist).

E - brochures

e - Bochure A+B+P
e - Bochure A+B+CCT

Scanner images

Images gallery