PIROP - Model A+B+CCT - Ophthalmic Scanner

• 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 :  55^??
• 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