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    This Topcon Myah Biometer & Corneal Topographer is a versatile instrument that also includes corneal topography, pupillometry, anterior cornea wavefront analysis and contact lens fitting tools making it a comprehensive device for monitoring axial length, evaluating the corneal surface, assessing visual quality and fitting specialty lenses. Analysis tools plot changes in axial length, refraction and corneal power; highlight differences in corneal shape between visits; and map higher order aberrations.


      • TOPOGRAPHY – Corneal topography with visit-to-visit comparison and white-to-white measurements
      • PUPIL ASSESSMENT – Dynamic pupillometry assesses size and light reflexes of the pupil
      • LENS FITTING – Contact lens fitting tools including database of conventional RGP, Ortho-K lenses and fluorescein simulation
      • ABERRATION MAPS – Simulate the effects of higher order aberrations on visual quality
      • USER-FRIENDLY – Compact and easy to operate
      • EASILY REVIEW DATA – Access patient data on any connected PC in your network


      Keratoscope cone

      24 rings equally distributed on a 43D sphere

      Analyzed points

      Over 100.000

      Measured points

      over 6.000

      Corneal coverage

      Up to 9.8mm on a sphere of radius 8.00mm (42.2 diopters with n=1.3375)

      Diopter power range

      28.00 – 67.50 D


      0.01 D, 0,01mm

      Axial Biometry

      Low-coherence interferometry on optical fiber (SLED @ 820 nm)

      Capture system

      Guided focus 


      LCD 10.1 inch capacitive touch screen




      Dynamic, Photopic, Mesopic, Scotopic


      Corneal map, Comparison map, Contact lens, Height map, Zernike analysis, Pupillometry,
      Rx/AL Trend analysis

      Working environment

      10 °C – 40 °C, Relative humidity 8 – 75% (no condensing), Atmospheric pressure 800 – 1060 hPa

      Power source

      AC 100 – 240 V 50/60 Hz

      Power consumption

      100 VA


      320 mm (W) x 490 mm (H) x 470 mm (L), 18 Kg

      External Connections

      LAN integrated, 2x USB

      Printing options

      USB printer, Network printer, PDF on network shared folder, PDF on USB
      PDF or Image on network folder or on USB

      Operating System

      Windows 10 64-bit



      Hard Disk

      500 GB