Topography and Dry Eye Analysis 
Anterior Segment Analysis 
Slit Lamp / Documentation 
Autorefractor 
Myopia Master® 
Perimetry 
Tonometer 
Visual Test Equipment 
Vitreoretinal Surgery 
Trial Frames 
Binocular Loupes 
Perimetry 
Dry Eye 
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.
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OCULUS Keratograph® 5M |
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.
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!
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!
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.
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.
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| 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 |
| Light source: | 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 485 - 512 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, 8 GB memory, 1 TB HDD, Windows® 10 Pro |
| Recommended screen resolution | 1920 x 1200 pixel |
In acc. with the Medical Device Directive 93/42/EEC
The OCULUS QM system is certified in accordance with ISO 13485 and (EU) 2017/745 (MDR).
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.
Benefit from all the advantages of the new 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.
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 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.
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.
Result: Static fluorescein-images and videos can be recorded under slit lamp conditions!
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
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.
Dry Eye Examination
Can the NIKBUT measurement be performed even in severe dry eye?
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”.
Is the NIKBUT value the same as fluorescein tear film break-up time (TFBUT)?
The differences between fluorescein TFBUT and NIKBUT values should be noted, although positive correlation between TMH and Schirmer test values has been reported.
Why are white areas sometimes displayed in the colour-coded map of the NIKBUT display?
White areas are displayed if the patient blinks before 15 seconds after the measurement started. This does not affect the measurement in any way.
Does abnormal corneal shape i.e. keratoconus affect the NIKBUT measurement?
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.
Does the nose shadow affect the NIKBUT measurement?
No, the area being analyzed during the NIKBUT measurement usually doesn’t coincide with the area affected by the nose shadow.
What is important when measuring tear meniscus height (TMH)?
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.
Are the meibomian glands graded objectively by the software?
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 some cases, R-Scan evaluating bulbar redness cannot detect the conjunctival area correctly.
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.
What are the particles being observed during the tear film dynamic examination?
The particles are a combination of eroding corneal epithelial cells, tarsal conjunctival cells and small air-particles.
Can data from the Keratograph be exported for research?
Yes, data from the NIKBUT, R-Scan and all keratometric data can be exported to csv files.
Topography/Contact lens fitting
The Keratograph has 22 Placido rings to perform a measurement. Does this generate sufficient information about the cornea?
Yes, with the 22 Placido disc 22.000 real measured data points are generated after each measurement. None of these are extrapolated measurements.
Does the Keratograph measure simKs?
Yes, a real keratometer is included in the hardware measuring simKs of the anterior surface.
Does the Keratograph measure the posterior cornea?
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.
How does the Keratograph aid in keratoconus diagnosis?
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.
The OxiMap® displays oxygen transmissibility of a soft contact lens. Can any lens on the patient’s eye be measured?
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.
Data of various lenses are included in the Contact Lens Fitting display. Can data for other lenses be imported too?
Yes, data from any lens can be manually input if the parameters are known.
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The OCULUS QM system is certified in accordance with ISO 13485 and (EU) 2017/745 (MDR). |
