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Keratograph® 5M

The advanced corneal topographer

Automated, precise and clear as possible for consultations.

  • Highlights
  • Videos
  • Software
  • FAQs
  • Technical Data
  • Contact

The OCULUS Keratograph® 5M

The OCULUS Keratograph® 5M is an advanced corneal topographer with a built-in real keratometer and a color camera optimized for external imaging. Unique features include examining the meibomian glands, non-invasive tear film break-up time and the tear meniscus height measurement and evaluating the lipid layer.

The keratometer: integrated in all OCULUS topography devices

The benefits of the integrated keratometer are crucial for opticians’ and optometrists’ everyday practice:

  • measurements of actual corneal curvature
  • exact measurements for perfect correction of contact lenses
  • intuitive and simple to use
  • can be processed quickly
  • high-resolution images ensure clear results for customers
OCULUS Keratograph® 5M

Gain Trust

Professional consultation

With the Keratograph® 5M, you can show your patients images they have never seen before. Gain patient trust by providing professional consultation during examinations and follow-ups.

Easy-to-Understand Presentation

Make your services transparent!

Actively integrate the Keratograph® 5M into your consultation. Many easy to understand displays support you in communication and patient education. Use your Keratograph® 5M as a marketing tool to make your services transparent!

New Joystick for Keratograph® 5M

Now with Release Function

The new joystick for the Keratograph® 5M allows you to capture images and video sequences directly from the device. No need to use the mouse: your hand just stays on the joystick when you capture images or videos.

The new joystick communicates via a smart Bluetooth interface. And it does away with the need for cumbersome power cabling. The joystick switches to sleep mode function when not in use to extend battery life.

Switching to the new joystick is quick and simple. Watch the video below to see how easy it is!

Functions

Measurements with Placido Ring Illumination

Measurements with Placido Ring Illumination

Thousands of measuring points are used to measure the whole surface of the cornea. A white ring illumination is used for this purpose. An infrared ring illumination is also provided for analysis of the tear film to prevent glare-related reflex secretion.

Measurements with Light Emitting Diodes

Measurements with Light Emitting Diodes

The perfect illumination has been integrated for every function of the Keratograph® 5M: White diodes for the tear film dynamics, blue diodes for fluo-images, infrared diodes for Meibography.

Software Highlights

Crystal TEAR Report

Bring Your Dry Eye Protocol to Life

Benefit from all the advantages of the Crystal TEAR Report in the Keratograph® 5M: efficient screening, well-founded measurement results and greater patient loyalty. With its preselection of recommendations and the option to manually adapt them, the Crystal TEAR Report allows you to draw up an effective treatment, according to the individual causes of dry eye, in the shortest time. The result: a comprehensive dry eye analysis.

Complete Documentation

Follow-ups provide reliability

Follow-ups require comparison of several examinations. In doing so, changes can be easily detected and fully documented. Regular follow-up examinations provide reliability and increase the trusting relationship between you and your patient. The Keratograph® software contains both data and image documentation.

Contact Lens Fitting

Professionalism through innovation

An ideal lens is chosen from the large lens data base and is then suggested in the Lens Fitting display. Based on this topographic data, a simulated fluorescein image of this particular lens is created. You can then take real fluorescein images with the Keratograph® 5M and compare them with the simulated images.

Software

The heart of the Keratograph® 5M

Makes the Tear Film Visible
NIKBUT – Assessment of the Tear Film Break-Up Time
Meniscus Tear Height – Assessment of the Tear Film Quantity
Lipid Layer – Assessment of the Interference Phenomenon
TF Dynamics – Assessment of the Particle Flow
R-Scan – Assessment of the Particle Flow
Meibo-Scan – Meibography of the Top and Bottom Eyelid
Make Dry Eye Diagnosis Crystal Clear
Recording Made Easy
Excel With Your Dry Eye Diagnosis
Documentation and Patient Education
How Does That Work?
Indispensable for:
Oxygen Transmissibility of Soft Contact Lenses Made Visible
Easy-to-Understand Patient Education
Compare Different Soft Contact Lenses!
The tear film is assessed using either white or infrared illumination. The new high-resolution color camera makes even the finest of structures visible. In addition to NIKBUT (Non-Invasive Keratograph® Break-Up Time) and measurement of the meniscus tear, the TF-Scan can also make an assessment of the lipid layer and the tear film dynamics. Tear film analysis with the OCULUS Keratograph® 5M is non-invasive and is conducted without any additional tools.
The tear film break-up time is measured non-invasively and fully automatically. The new infrared illumination is not visible to the human eye. This prevents glare during the examination. The TF-scan presents the results in a way that is easy for you and your customers to understand.
The height of the tear meniscus can be precisely measured with an integrated ruler and various magnification options, and its development along the edge of the bottom lid can be assessed. The results are saved to the patient file.
The interference colors of the lipid layer and their structure are made visible and can be recorded. The thickness of the lipid layer is assessed based on the structure and color.
The video recording, with up to 32 frames per second, enables the observation of the tear film particle flow, from which conclusions regarding the viscosity of the tear film can be drawn.
Automatic classification of the bulbar redness. Conjunctival redness used to be assessed subjectively and depended on the examiner. The R-Scan is the first module that automatically and objectively documents and classifies the bulbar and limbal degree of redness. The R-Scan detects the blood vessels in the conjunctiva and evaluates the degree of redness. This automatic assessment spares you the time and effort of having to make manual comparisons using classification sheets.
The multi-functionality of the Keratograph® 5M easily and efficiently integrates difficult examinations such as meibography. The dysfunction of meibomian glands is the most frequent cause of dry eye. Morphological changes in the gland tissue are made visible using the Meibo-Scan and can be classified with the JENVIS Meibo Grading Scales.
Find out the cause of dry eye disease quickly and reliably with the assistance of the new Crystal TEAR Report in the Keratograph® 5M. Carry out a comprehensive analysis using the measurement results as a basis for your diagnosis. All results are summarized in a patient-friendly, neatly arranged printout, enabling you to combine documentation and patient education.
Up to 50 recordings can be carried out easily for documentation purposes. Readily understandable user tips and optimal auto-setting prior to each recording make it possible to delegate the entire measurement process. Despite the high degree of user guidance, you can directly delete faulty recordings as well as change settings and adapt the measurement sequence individually.
The entire course of diagnosis is documented, providing you with an ideal basis for your treatment decisions. All necessary recordings that are required to grade the individual's dry eye state, can be viewed at the same time. Depending on the grade you obtain, you can then determine a suitable treatment plan.

Additionally, you can enter the data from other tests, such as Osmolarity, Schirmer's Test, Phenol Red Thread Test, and more.

The Crystal TEAR Report surely and safely walks you through all the necessary assessment criteria that make up a comprehensive dry eye analysis. To complete the treatment plan, you can manually enter your dosage recommendations for the individual therapeutic measures on the printout. Making it an easy-to-grasp, optimal means of patient education.
The Imaging Software is used to record video and image files. In addition to viewing the videos and single images by themselves, you can also compare the recordings with the simulated fluorescein-images of the measured eye.
How Does That Work?

  • Simply integrate the Imaging Software into the Keratograph® software
  • Blue light-emitting diodes in the illumination beam path stimulate the fluorescein
  • Yellow filters are integrated into the observation beam path

Result: Static fluorescein-images and videos can be recorded under slit lamp conditions!

  • Demonstrating the fit of contact lenses
  • Assessment of the static fluo-image
  • Assessment of the fit of contact lenses at different pupil sizes
  • Comparison of fluo-image simulations with real-time fluo-images
  • Selection of the best possible contact lens
  • Consultation and customer retention

The OxiMap® presents a color map of the oxygen transmissibility of soft contact lenses based on the lens power, which is easy to understand – even for your customers!

An intact tear film and a good supply of oxygen to the cornea are an absolute necessity for wearing contact lenses comfortably. The OxiMap® presents a color map of the oxygen transmissibility of soft contact lenses based on the lens power – which even your customers will understand!

The oxygen transmissibility (Dk/t) depends on the material the contact lens is made of and on its thickness. In the past, only the manufacturers’ specifications about the oxygen transmissibility in the center of a -3.00 dpt contact lens were available. With the OxiMap®, you now get a graphic visualization of the Dk/t values over the whole area, based on the lens thickness.

The Dk/t values are color-coded, whereby black represents an oxygen supply lower than that present in a closed eye. To preserve the integrity of the cornea when wearing contact lenses, minimum Dk/t values are recommended based on the length of time the contact lenses are to be worn. The OxiMap® color-coding is based on these international recommendations.

The OxiMap® is individually adapted based on the lens power and supports you in your consultation with the patient and helps you to choose the most suitable contact lens. New materials used for soft contact lenses provide excellent oxygen transmissibility.

OxiMap® was developed in close cooperation with JENVIS Research and the University of Applied Sciences in Jena.

Indispensable for:

  • Fitting multi-focal contact lenses
  • Exact determination of the treatment area for refractive surgery
  • Seamless integration into the existing Keratograph® software
  • The infrared camera installed in the Keratograph delivers images of the patient’s pupil, which are used as the basis for the measurements

Different Ways of Determining Pupil Reaction:

  • Examination of the pupil reaction both with and without glare
  • Examination using two different glare stimulus powers
  • Clear presentation of the results in graphic form: pupil changes over a period of time; minimum, maximum and mean pupil diameter, incl. standard deviation
  • Comparison views possible

Device
Makes the Tear Film Visible NIKBUT – Assessment of the Tear Film Break-Up Time Meniscus Tear Height – Assessment of the Tear Film Quantity Lipid Layer – Assessment of the Interference Phenomenon TF Dynamics – Assessment of the Particle Flow R-Scan – Assessment of the Particle Flow Meibo-Scan – Meibography of the Top and Bottom Eyelid Make Dry Eye Diagnosis Crystal Clear Recording Made Easy Excel With Your Dry Eye Diagnosis Documentation and Patient Education How Does That Work? Indispensable for: Oxygen Transmissibility of Soft Contact Lenses Made Visible Easy-to-Understand Patient Education Compare Different Soft Contact Lenses!

Title

Description

FAQs

The NIKBUT measurement for dry eye with severe corneal epithelial damage is difficult. Even when the NIKBUT measurement is performed in such cases, the device mostly reports the results as “too short”.
The differences between fluorescein TFBUT and NIKBUT values should be noted, although positive correlation between TMH and Schirmer test values has been reported.
White areas are displayed if the patient blinks before 15 seconds after the measurement started. This does not affect the measurement in any way.
No, the software detects a basic image. In the case of keratoconus for example the strained Placido rings induced by the condition is noted initially by software and distortions from the original image is recorded and indicated as a break in the tear film. However, in cases with advanced keratoconus or severe irregular corneal astigmatism, it is hard to perform the measurement.
No, the area being analyzed during the NIKBUT measurement usually doesn’t coincide with the area affected by the nose shadow.
At least three measurement points (nasal and temporal limbus, pupil center) should be selected. To get the right value the ruler has to be placed on the lid margin and measure perpendicular up to the last reflex of the meniscus. Please see image as reference. The correct measurment is 0.22 mm for this example.

No, however grading scales called the JENVIS Grading Scales for meibomian glands have been included in the software. A sliding bar tool allows for direct comparison of patient results to the grading scale, making meibo grading very easy with the Keratograph 5M.
In eyes with small lid aperture or eyes with ptosis, (commonly seen in the older Asian population), the device cannot detect the conjunctival area correctly.
The particles are a combination of eroding corneal epithelial cells, tarsal conjunctival cells and small air-particles.
Yes, data from the NIKBUT, R-Scan and all keratometric data can be exported to csv files.
Yes, with the 22 Placido disc 22.000 real measured data points are generated after each measurement. None of these are extrapolated measurements.
Yes, a real keratometer is included in the hardware measuring simKs of the anterior surface.
No, the Keratograph is a Placido topographer. Placido discs are projected on the tear film, the software analyzes the resulting images and measurement data of the anterior cornea is generated. No, a Pacido topographer can measure the posterior cornea on its own.
Topographic indices for keratoconus screening are incorporated in the software, as well as Fourier Analysis. Objective inspection of the sagittal map is another tool to aid with diagnosis.
No, lenses cannot be individually measured. Well-known soft lenses were analyzed and the information is programmed into the software. The role of the OxiMap® is to educate patient’s on the importance of using lenses with high oxygen transmissibility, showing them the benefits in an easy to understand image. Furthermore the OxiMap® gives information about the oxygen transmissibility over the entire surface of the lens, as well as differences between prescriptions.

Videos

New Joystick for Keratograph® 5M: Now with Release Function

Technical Data

Measuring range 0.1 – 1.5 in, 9 – 99 D
Accuracy ± 0.1 D
Reproducibility ± 0.1 D
Number of rings 22
Working distance 78-100 mm
Number of evaluated data points 22,000
Camera Digital CCD camera
Lightsource Placido illumination: White
Placido illumination: Infrared 880 nm
Fluorescein illumination: Blue 465 nm
Meibography: Infrared 840 nm
Tear film dynamics: White
Pupillometer illumination: Infrared 880 nm
Dimensions (W x D x H) 275 x 320 – 400 x 480 – 510 mm
Weight Measuring head: 7.1 lbs
With base: 13.5 lbs
Max. power consumption 18 W
Voltage 90-264 V AC
Frequency 47-63 Hz
Recommended computer specifications CPU Intel® Core™ i5-7600, 1 TB HDD, 8 GB memory, Windows® 10 Pro
Recommended screen resolution 1920 x 1200 pixel

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Questions?
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Tel. +1 888 284-8004

Choose your topographer

OCULUS gives you the choice. What do you need for topography in your everyday practice?
Keratograph® 5M, Keratograph® 4 or Easygraph: Whichever device you choose, OCULUS quality is assured.

OCULUS Keratograph® 5M
OCULUS Keratograph 4
OCULUS Easygraph
Keratograph® 5M Keratograph® 4 Easygraph
Topography
Overview Presentation
Large Color Map
4 Color Maps Selectable
Camera Image
3D Cornea
Fourier Analysis and Zernike Analysis
Topographic Keratoconus Screening
Elevation Map
Corneal asphericity
Lens Fitting
Compare examinations
Measurement contact lens back surface
Imaging
Image and video documentation with fluo images
Near-Portion Height Measurement
Palpebral Angle Measurement
Manual Recording Mode
Crystal TEAR Report
Crystal TEAR Report (Find out the cause of dry eye disease quickly and reliably)
TF-Scan (Evaluation of lipid layer and tear film dynamics, measurement of tear meniscus height and non-invasive tear film break-up time (NIKBUT))
R-Scan (Automatic classification of bulbar and limbal redness)
Meibo-Scan (Meibography of upper and lower eyelid)
Pupillometry
Examination of pupillary response using the pupillometer, asymmetry test and manual measuring mode
Oximap®
Raphic representation of the oxygen transmissibility (Dk/t) of soft contact lenses
Technical Data
Measuring range 0.1 – 1.5 in, 9 – 99 D 0.1 – 1.5 in, 9 – 99 D 0.1 – 1.5 in, 9 – 99 D
Accuracy ± 0.1 D ± 0.1 D ± 0.1 D
Reproducibility ± 0.1 D ± 0.1 D ± 0.1 D
Number of rings 22 22 22
Working distance 78 bis 100 mm 80 mm 40 mm
Number of evaluated data points 22,000 22,000 22,000
Camera Digital CCD camera Digital CCD camera
Dimensions (W x D x H) 275 x 320 to 400 x 480 to 510 mm
(10.8 x 12.6 to 15.7 x 18.9 to 20.2 in)
275 x 320 to 400 x 490 to 517 mm
(10.8 x 12.6 to 15.7 x 19.3 to 20.4 in)
119 x 102 x 216 mm
(4.7 x 4.0 x 8.5 in)
Weight 7.1 lbs (Measuring head) / 13.5 lbs (with base) 5.1 lbs (Measuring head) / 11.7 lbs (with base) 1.6 lbs
Details Details

Legend: ✓ = available * – = not available *  ⃘  = optionally available against surcharge