Refraction

Auto Kerato-Refractometer KR-8100PA

KR-8100PA

By installing a 3D auto alignment function, measurement can be made easily even by an unskillful operator.
Rotary prism unique to TOPCON is mounted allowing high-accuracy measurement and measurement of small pupils 2.0mm in diameter.
Mapping function most suitable to those wearing contact lenses is also available.

  • One multifunctional auto kerato-refractometer performs objective refracting power measurement, cornea curvature radius measurement and cornea shape mapping display.
  • A measurement system by placidoring is used for measurement of cornea radius of curvature. Accurate measurement by all-round data of ten rings is assured. The rings have wide measurement ranges from 1.5 to 9.2mm in diameter.
  • In only 4 seconds, measured mapping data is displayed on the display screen of the unit. Additionally a memory of placidoring image is displayed, cornea shape mapping is displayed and overlaying mapping onto the anterior segment can be shown.
  • If an anomaly is detected with the cornea shape during measurement, a message will be displayed. Mapping can be measured without interruption during kerato data measurement when an anomaly is detected.
  • A TV monitor and video printer can be connected. An image can be zoomed on the monitor screen and a placidoring projection image of a measured eye can be printed out for an explanation and recording.
  • Cornea shape mapping measurement will display reference values of an appropriate base curve from data of the entire cornea for fitting of a contact lens.
  • Data processing of data measured by the KR-8100PA by connecting the meter to a personal computer installed with Color Mapping Software 32 will display a cornea shape in colors allowing easy viewing. This will be useful in understanding a cornea shape, contact lens fitting, early detection of a cornea surface anomaly and examination of astigmatism after surgical operation. (Option)
<Specifications>
Model KR-8100PA
Refraction measurement range
Hyperopia:
0 to +22D/0.25D step display (0.12D step display selectable)
Myopia:
0 to -22D/0.25D step display (0.12D step display selectable)
Astigmatism:
0 to ±8D/0.25D step display (0.12D step display selectable)
Axial:
0 to 180° (displays 1 to 180°), / 1°step display(5° step selectable)
Corneal curvature measurement range
Curvature radius:
5.00 to 10.00mm
Sphere power:
67.50 to 33.75D 0.25D step display (0.12D step display selectable) (with cornea reflective index = 1.3375)
Cylinder power:
0 to ±10D 0.25Dstep display (0.12D step display selectable)
Axis:
0 to 180° (Display 1 to 180°) / 1°step display (5°step selectable)
Mapping measurement range
Corneal curvature radius:
5.00 to 10.00mm
Corneal refractive index:
67.50 to 33.75D (with cornea reflective index = 1.3375)
Measurement range:
1.5 to 9.2mm dia. (with cornea curvature radius = 8mm)
Measurable minimum pupil diameter 2.0mm dia.
Target fixation Auto fogging
Auto-start function Yes
Automatic alignment function Yes
Display of measurement value Displayed on monitor screen
Recording of measurement value Internal printer
Collimation Displayed on monitor screen
Monitor display 5-inch type
PD measurement range Max 85mm, Measurement range (1mm step)
External output terminal RS232C, Video output
Base travel Forward/backward 40mm, Right/left 86mm, Up/down 30mm
Source voltage AC 100V 50/60Hz
Power consumption 160VA
Dimensions 275(W) × 475(D) × 500(H)mm
Weight 21kg

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